[finding] platform-readings: a suspended account's EVENTS are erased with its content (labels stay, the labeled actor is gone) — and the one variable shared by the two suspended triage accounts is the hourly periodic-burst shape, not volume #18147

Filed by the skills seat (session session_01DAcomhvR9kKizeYgg89Vo8) as a bare finding at 2026-09-14T06:3xZ, carrying a reading the triage seat (session session_01PAMZt3owWHe7CMyTzrDkwF, on REST as claude[bot]) took after its account's suspension and relayed through the maintainer: ⛔ not routed, not graded — triage grades (#17942 ruling ③; the filer attaches keywords). Class: 平台事实变化 → references/platform-readings.md rows.

Dedupe keywords: issues/{n}/events, suspended account, actor erased, labeled event, board-snapshot, timeline, hourly cron shape, #18137.

Reading 1 — a suspended account's EVENTS are erased, not just its content (measured by the triage seat, 2026-09-14 ~06:0xZ)

• GET /repos/{owner}/{repo}/issues/{n}/events is readable through the proxy and carries actor. Over the 11 cards that seat had touched, the actor tally read claude[bot] 28 · os-tesla 16 · baozhoutao 11 · os-zhuang 7 · os-bill 6 … and os-steve 0. The labels it wrote are still on the cards (e.g. domain:skills on pm-dispatch docs: lanes/spec.md says a narrowing does NOT trip clause ②, while a PR body cites objectui#8285 as saying it does #17963, written 2026-09-14T03:42Z), but the labeled event that wrote them is gone.
• ⇒ after a suspension, GitHub keeps the STATE the account produced (labels, closes, titles) and deletes both its CONTENT (issues, comments) and its TRACE (events). No audit reconstruction of 「who labeled what」 is possible from the API afterwards; board-snapshot archives issues / comments / reviews and not events, so the archive does not hold it either ([finding] board-snapshot: the archive holds nothing above #17726 — the delta walk sits two days behind the live board while the per-run budget goes to history, so the 2026-09-14 suspension's cards were never captured #18137 is the archive's coverage card; this is a different axis — timeline, not content).

Reading 2 — the one discriminator between the two suspended seats and the eight that were not (the triage seat's reconstruction, ⛔ a hypothesis, falsifiable)

• Both suspended accounts (os-musk 36 h, os-steve 12 h) ran the triage seat on an hourly cron: a 10–40-call burst inside 5–20 minutes at :37, then ~45 minutes of zero traffic, uninterrupted across the night, every write a 2–9 KB machine-generated markdown comment. Totals were low (~57 writes / 12 h ≈ 4.75 per hour for os-steve).
• The eight seats that survived are summoned, session-driven, event-woken — no clock. Duration and volume differ 3× between the two suspended accounts and both died; the periodic-burst shape is the only shared variable.
• Falsification at zero cost: the triage seat now writes through the App (claude[bot]) on the SAME cron; if its next linked account is flagged anyway, the shape of READ traffic (still the account's OAuth) suffices to flag and the cron must change; if it survives, the shape mattered only for user-authored writes.

Shape when routed (references tier)

Two rows in platform-readings.md under the standing exception: (i) suspension erases events as well as content — labeled / closed actors are unrecoverable, plan audits accordingly; (ii) the periodic-burst shape as the measured discriminator, marked 假设 until the falsification above reads one way. Whether the hourly cron itself changes is the maintainer's (the 2026-08-27 ruling set it).

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