Soon after Musk took over, I started having accounts wishing me violent deaths, repeatedly commenting on everything I said with graphic details (broken bones, poisoning, dragging my body over the pavement, etc.). That happened occasionally before, but they typically got banned. After the takeover, those were gone (and my account got blocked a couple of times for quoting them).
That hasn’t happened after a year on BlueSky and Threads.
Scams were rampant on large accounts and people looking at cryptocurrencies: more than three-quarters of comments were obvious patterns that I had flagged dozens of times. I noticed those earlier today on Threads; let’s see if they reappear and make up most of the discourse there.