People are saying this is so people's embarrassing likes aren't exposed but I suspect it's more about eliminating transparency in terms of which posts are promoted or buried and why (since the Twitter algo uses likes as an important factor in what to show you)
Whichever take incorporates "because Musky's fee-fees are hurt" is correct.
So for example, not long ago, court records confirmed that Musk was using an alt-account to like hentai porn. So he's now rolling out an update that will hide all of the likes of all of the hentai he now encourages.
Hating Twitter/X more & more. Their moderator promotes questionable stuff while shadow banning other stuff. It’s a cesspool of some vicious posts. Watching/posting beat downs not OK. Encourages violent behavior.
while that's very likely, my own personal head cannon is it's primarily so that elon can lie (either to himself or to the public) about just how much his tweets are liked by users in a way that is harder to debunk
I've long been concerned that Musk will abuse Twitter as much as he can to help Trump in the last months before the election after keeping a comparatively light touch beforehand to keep people from leaving.