Stalest collection first. The sweep paces itself from CSFloat's own rate limit — it spends each window evenly, parks when the budget is gone, and picks up from exactly where it stopped when the window refills, so a full pass can take days without ever earning a 429. Runs only while this tab is open; results are kept in this browser, keyed by listing id, so a re-scan updates rows rather than duplicating them.
Items listed by people here, sold between each other — no CSFloat, no fee. Everything below this card is CSFloat’s market, read-only; this one is ours.
CSFloat listings priced below what that exact item normally goes for — same skin, same wear, same variant. The comparison is the median of everything your sweeps have seen for it, so one troll price can’t invent a bargain.