I haven’t been on Fimfiction in years. It used to be fine with loli shota stuff, though, maybe it just wasn’t enforced back then.
Friggin everyone lies about their ages. I did that before I turned 18, though mlp:Fim hadn’t come out yet.
I do remember someone getting scolded for reposting someone’s story once, they thought it had been deleted, but it was just temporarily taken down for grammar edits.