Some servers don’t seem to be doing any vetting, allowing a lot of repost accounts, bot accounts, and karma farmers (even though we don’t show karma in lemmy).
All we can do is report those accounts, block them, and if the servers keep allowing spammers, then block those servers.
















You’ll need to take this up with markdown-it, which is one of the most popular javascript markdown libraries, and follows the CommonMark spec. They know what they’re doing and I’m sure have reasons for rendering it that way.
Edit: https://spec.commonmark.org/0.31.2/#emphasis-and-strong-emphasis