On tumblr, instead of replies and re(posts|woots|tweets)/boosts, there’s just reblogging.
You can put a small hidden message in the hashtags section of a post, and sometimes people post these as a reblog if they see one someone else posted that shouldn’t be hidden (in their opinion).
fossilesque@mander.xyz 1 day ago
It’s always been a tumblr thing
prole@lemmy.blahaj.zone 1 day ago
Thanks, I hate it.