Even if they try to slide into your DMs, it's all polite and formulated like something out of a Victorian novel. So genteel and kind, that you are almost tempted to respond... until you realize that they probably want to tell you all about crypto.
I suspect the increased administration of relays and image servers has also had a big impact. I don't use the really gross relays. Just paid, curated, and WoT ones.
Anyone can still reach me, but it now costs them something to misbehave.