@supernovae@universeodon.com
Mastodon doesn't have any control over missing replies, unfederated likes, etc.
It's like blaming your iPhone when the cell phone tower goes down and you miss a call.
Mastodon doesn't receive those likes at all because Fediverse/ActivityPub doesn't hand them to Mastodon, so it's due to Fediverse, not Mastodon.
THAT's why it's important to distinguish between the different pieces here.
Otherwise you're just calling up Apple to complain when they can't do anything to fix the cell phone company.