#sff

We track 645 posts using #sff across 4 networks, carrying 13.3K engagement between them — an average of 21 per post.

It is used most on Bluesky: 639 of the 645 posts we hold, 99% of the total.

Where it performs hardest per post, though, is Mastodon, averaging 102 — so the tag is posted most in one place and lands best in another, which is exactly the difference worth knowing before choosing where to use it.

Ranking comes from the posts themselves rather than from how often the tag appears, and it is recalculated as new posts are collected. How we measure this →