# Yusuke (@yusukelp) on x

- id: koinon:creator:x_yusukelp
- url: https://koinonlink.com/kol/x/yusukelp
- schema_version: 1.4

## Identity
- platform: x
- handle: yusukelp
- platform_url: https://twitter.com/yusukelp
- website: https://LandingBoost.app/
- entity_type: creator
- person_id: Cross-platform identity not resolved for this creator.

## Reach
- followers: 1515
- following: 457
- posts_total: 8784
- posts_observed: 1
- posts_per_day: 21.065
- account_age_days: 417
- verified: true
- size_tier: nano

## Engagement
- status: peak_post_only
- peak_post_engagement_rate: 0.0264
- best_post_interactions: 40
- measurement_source: x_post_interactions
- measurement_formula: interactions on one post — likes, or likes + reposts + replies depending on the discovery path (the two are not distinguishable in the stored data)
- comparable_pool: peak_interactions
- status_note: We have only the single best observed post, so no mean exists. peak_post_engagement_rate is an UPPER BOUND, systematically higher than an average — never compare it against an average rate.
- unit_note: engagement_rate and peak_post_engagement_rate are ratios (0-1); avg_interactions_per_post and best_post_interactions are absolute counts. Read status before reading any number: a null rate has several different causes and status says which one applies here.

## Content
- category: software
- subcategory: martech
- category_confidence: 0.85
- category_source: derived_from_recent_content
- topics: landing page conversion optimization, building in public, product launch strategies, copywriting for SaaS, developer mindset and execution, product metrics tracking
- bio: Building @LandingBoost

Find what stopping your page from converting with 4000+ revenue-backed landing page references

Generated $1k Revenue so far.

## Audience (inferred)
- status: present
- description: Startup founders and indie hackers building digital products, especially landing pages for conversion optimization
- roles: ads
- seniority: practitioner
- pain_points: Struggling to get traction despite launching a product, Frustrated by invisible progress during development phases when no milestones are visible, Having low conversion rates on landing pages without clear insight into why, Difficulty in writing compelling copy that actually converts
- posts_analysed: 6
- confidence: 0.4

## Commercial (inferred)
- audience_buyer_fit: 0.9
- promotion_intent: 0.85
- open_to_collaboration: false
- contact: Koinon does not publish creator contact details.

## Quality signals
- authenticity_score: 54
- authenticity_basis: engagement_observed
- credibility_score: 54
- flagged_for_review: false
- koinon_bd_grade: B — measures Koinon partner-outreach fit, not creator quality
- interpretation: Signals for triage, not verdicts. A flag means the profile is worth a manual check.

## Evidence
- [x_yusukelp#b18bb567] Good morning builders☀️ Launched LandingBoost on @MicroLaunchHQ (Pro)🔥 ~1 day in: 12 visits → 2 scans → 2 signups from that channel. Already feels worth the $39. Also got solid feedback: show more before/after cases. That’s next. Huge thanks to @SaidAitmbarek walked me through P (https://twitter.com/yusukelp/status/2072772265788498084)
- [x_yusukelp#a17b90dd] The best landing page copy I've seen this month didn't use a single adjective. No powerful. No seamless. No smart. Just: here's the problem, here's what changes, here's what to do. That's it. That's the whole formula.
- [x_yusukelp#ffb4b822] do more https://t.co/x8FdUKLsHl
- [x_yusukelp#76263cf0] Good morning builders☀️ It’s August!! What’s your goal?? I’ll go first.
- [x_yusukelp#46f68bee] Nobody talks about this part of building in public. The week where nothing ships. No milestone. No win to post. Just fixing things nobody sees. That week is doing more work than most launch days. Do it anyway.
- [x_yusukelp#5c32ce4f] Yesterday I ran out of 5.6

## Provenance
Every inferred field below carries how it was produced. Facts stay facts; inferences stay inferences.

- audience.description: source_type=ai_inferred, confidence=0.4, freshness_days=21, method=llm_persona_from_recent_content
- audience.roles: source_type=ai_inferred, confidence=0.4, freshness_days=21, method=llm_persona_from_recent_content
- audience.seniority: source_type=ai_inferred, confidence=0.4, freshness_days=21, method=llm_persona_from_recent_content
- commercial.audience_buyer_fit: source_type=ai_inferred, confidence=0.6, freshness_days=80, method=llm_scorer — Relative signal within Koinon indexing, not a market-wide score.
- commercial.promotion_intent: source_type=ai_inferred, confidence=0.6, freshness_days=80, method=llm_scorer
- quality.anomaly_flags: source_type=heuristic, confidence=0.5, freshness_days=112, method=profile_snapshot_and_engagement_ratio_heuristic — Means "worth a manual check", NOT confirmed fraud. Flags can be wrong and are not a verdict about the person.
- quality.authenticity_score: source_type=heuristic, confidence=0.5, freshness_days=80, method=Profile-shape heuristic from a single snapshot (follower count, following ratio, account age, posting volume, verification), reduced for engagement red flags where post engagement was collected. Where only a follower count is available the score saturates at 58. — The input set differs by platform; do not compare this score across platforms.
- quality.koinon_bd_grade: source_type=ai_inferred, confidence=0.5, freshness_days=112, method=llm_partner_fit_classifier + fit_score >= 0.6 AND authenticity >= 60 => A; fit_score >= 0.4 AND authenticity >= 45 => B; else C. authenticity < 30 or a promotional-pattern flag => quarantine. — Koinon partner-outreach fit, not creator quality.
- reach.followers: source_type=observed, confidence=0.95, freshness_days=112, method=platform_profile

## Freshness
- profile_checked_days_ago: 112
- content_analysed_days_ago: 80
- audience_updated_days_ago: 21

## AI retrieval
- indexing_requests: 8
- user_triggered_requests: 0
- note: Being indexed in bulk is not the same as being retrieved to answer a question.

## This profile
- Claim or correct: https://koinonlink.com/claim?k=x_yusukelp
- Request removal: https://koinonlink.com/claim?k=x_yusukelp
- Terms: https://koinonlink.com/for-ai