Prices use each known posting account’s latest sell offer across retained advertisements. Counts describe retained evidence, not lifetime history. Matching item, side, WL price and nonblank world count once. Listing counts measure activity, not separate traders. Charts use the latest offer per account on each side within each interval of the last 7 days; sampled charts say so. Percentages compare the first and last recorded interval medians. Different accounts do not prove different people.

Prices and listing counts describe retained advertisements. Older records may be unavailable. Exact ad detail is retained from 2026-07-24 UTC; older surviving ads are supplementary. Frozen daily prices cover 2024-10-22 to before 2026-07-24 UTC. Daily medians do not supply period prices or distinct-account counts. Activity facts are retained from 2024-10-22 00:00:00 UTC, independently of original ad text.