@KevinMarks @neil It's possible it allows something, but not e.g. slanted text, bold text or block quotes.

Glitch-soc corrects this unexpected behavior. Pleroma's Mastodon derives from glitch-soc, so it shows formatting too.

Every other OStatus or ActivityPub frontend before and after Mastodon, as far as I know, has allowed harmless formatting.

mastodon.social's rendering of the formatted post above is all plain: mastodon.social/@losttourist@s…