# Yu- (@Yu_ITSUKITA27) on x

- id: koinon:creator:x_yu_itsukita27
- url: https://koinonlink.com/kol/x/Yu_ITSUKITA27
- schema_version: 1.4

## Identity
- platform: x
- handle: Yu_ITSUKITA27
- platform_url: https://twitter.com/Yu_ITSUKITA27
- entity_type: creator
- person_id: Cross-platform identity not resolved for this creator.

## Reach
- followers: 1945
- following: 1836
- posts_total: 51077
- posts_observed: 2
- posts_per_day: 30.063
- account_age_days: 1699
- verified: false
- size_tier: nano

## Engagement
- status: peak_post_only
- peak_post_engagement_rate: 0.00103
- best_post_interactions: 2
- 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: entertainment
- subcategory: sports
- category_confidence: 0.85
- category_source: derived_from_recent_content
- topics: NPB player performance and workload, Team management and strategic decisions in Japanese baseball, Player misconduct and disciplinary outcomes, Fan sentiment and community debates on baseball culture

## Audience (inferred)
- status: present
- description: Japanese baseball fans, mainly hardcore followers of NPB (Nippon Professional Baseball) with strong opinions on team dynamics, player performance, and league politics
- roles: general_ai
- seniority: practitioner
- pain_points: Struggling to find authentic, unfiltered discussions about NPB player performances and team strategies, Frustrated by mainstream media's lack of critical analysis on player management and team decisions, Disappointed by the lack of accountability in player misconduct cases, especially regarding drug-related issues
- posts_analysed: 8
- confidence: 0.4

## Commercial (inferred)
- audience_buyer_fit: 0.1
- promotion_intent: 0.1
- open_to_collaboration: false
- contact: Koinon does not publish creator contact details.

## Quality signals
- authenticity_score: 43
- authenticity_basis: engagement_observed
- credibility_score: 43
- flagged_for_review: false
- koinon_bd_grade: C — 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_yu_itsukita27#92db4e10] 優勝するかシーズン終了するか逮捕者出るまでログアウトしま〜す👋 (https://twitter.com/Yu_ITSUKITA27/status/2060739569029730399)
- [x_yu_itsukita27#56b09cdb] 擁護をするとしたら2試合連続130球投げて普通に中6日で回ってるのはキツいと思う
- [x_yu_itsukita27#cdd1a55d] ヤクルトのいけっち増田外してるの笑う
- [x_yu_itsukita27#f76ff1d0] 黒木とongマジでホリエモンとひろゆき
- [x_yu_itsukita27#c5f1f58e] おもしろスタメンで草
- [x_yu_itsukita27#ff94603b] いまだに矢野君欲しいとか言ってる人流石にキツいよ😅
- [x_yu_itsukita27#2c6f763e] 長嶋茂雄賞とか設立自体が巨人のためみたいなもんなんだから本気でどうでもいい 障害に森下がワーワー言われるくらいなら坂本に取らせて球団内だけの賞にして欲しいけど
- [x_yu_itsukita27#83fb8f50] 球を避けるのが下手だったらしい前川はすぐ復帰したけど薬物を避けられなかった前川は一生復帰できない可能性あるのマジか

## 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=20, method=llm_persona_from_recent_content
- audience.roles: source_type=ai_inferred, confidence=0.4, freshness_days=20, method=llm_persona_from_recent_content
- audience.seniority: source_type=ai_inferred, confidence=0.4, freshness_days=20, 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=110, 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=110, 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=110, method=platform_profile

## Freshness
- profile_checked_days_ago: 110
- content_analysed_days_ago: 80
- audience_updated_days_ago: 20

## AI retrieval
- indexing_requests: 9
- 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_yu_itsukita27
- Request removal: https://koinonlink.com/claim?k=x_yu_itsukita27
- Terms: https://koinonlink.com/for-ai