It's because there is a vast concerted effort by the political left to destroy Musk now that he is no longer regarded as being strictly on their side. It's at Trumpian scale these days, in terms of the venom being directed at him.
Reddit is overflowing with non-stop Musk hatred. They spout lie after lie about him in every single thread where he's a topic. The most popular lie being that his business efforts - ie his success - were funded by an emerald mine that his father owned (neither thing is true).
I say this as an emotionally independent, objective observer of the craziness, I have no stake in it, and don't feel one way or another about it. The seeming mental illness the topic of Musk seems to draw out of people is astounding however, the herd promptly acts like deranged lunatics when he comes up as a topic.
Until Trump I had never seen anything like it before, in person or online. There must be a name for such a massive scale of crowd insanity, to describe the frothing-at-the-mouth irrationality.
my deranged lunatic hivemind venomous mentally ill frothing-at-the-mouth leftist brain can’t handle how rational this fucking asshole’s take on musk and trump is
there’s also this at the top of the thread:
I've been mostly ambivalent about the Musk-era at Twitter—mostly because I just don't care enough to have an opinion.
This, though. This one makes me angry and disappointed.
Twitter has had such a solid brand for so long. It's accomplished things most marketers only dream of: getting a verb like "Tweet" into the standard lexicon is like the pinnacle of branding.
turning one of the most popular sites on the internet into a cesspit of transphobia and nazis: ambivalent
musk fails to appreciate the Twitter brand: angry and disappointed
remember, hacker news is a bastion of high-quality discussion. fucking shitheads
Lobste.rs is where I spend most of my time online...
The focus is much more on the technical side. Submissions have to be tagged by a pre-approved set of tags (pre-censorship!) and users can flag a submission as spam or off-topic. https://lobste.rs/tags
Membership is invite-only, which does tend to enforce echo chambers, but at least prevents drive-by spamming, and does keep track of who invites who: https://lobste.rs/u#gerikson
Moderation is transparent: https://lobste.rs/moderations
It's a much smaller community, and I believe the mods are quite active "behind the scenes" in putting out fires. FWIW I've read that dang works fulltime moderating HN but it's a thankless job.
If you enjoy discussing programming and IT, lobste.rs is great. It's also quite welcoming towards LGBT+ folks, although there's a vocal contingent who are opposed to "SJWs". Here's a representative example thread, with an on topic submission from a user who happens to be an outspoken furry: https://lobste.rs/s/mn1am1. The usernames with strike-throughs are no longer active, generally they have been banned (the ban reason can be seen by clicking on the username).
Edit to add
cryptocurrencieswas renamed tomerkle-trees.