Think of #asf as a filter on the wider porn caption caption archive: same submission pool, but slimmed down to the exact register you searched for.
Recent uploads land at the top of the vertical feed; older high-score posts anchor the trending row further down; co-occurring tags branch off toward adjacent themes.
The tag's structured data (Schema.org CollectionPage + BreadcrumbList) is emitted on every render, so Google and Bing treat this as a real porn caption sub-hub rather than a query results dump.
Every visit reshuffles the sort weights slightly, so the same #asf archive rewards repeat trips — the top of the grid tomorrow won't be identical to today.
Every #asf post is a standalone URL with its own share preview, alt text and interaction counts.