It is hard to follow the chains of banning because they happen so fast, but @donie was apparently suspended for posting a quote from LAPD: "LAPD's Threat Management Unit (TMU) is aware of the situation and tweet by Elon Musk and is in contact with his representatives and security team. No crime reports have been filed yet."
Then @MattBinder posted "uh i just shared this straight news update just posted by @donie and moments later he's suspended" (with a screenshot of that) and got banned himself.
So it's not just links to ElonJet, or links to reporting about that, it's anything Elon related.
That place is burning up fast.