There's also an issue with automatically turning on WoT filtering for everything which I made a post about here:

nostr:nevent1qqs9xk7mm29mns6yf4gtr00h3w56z0yrrv5qdneu8acqctnyahc4dvqprpmhxw309akk7mnpvshx5c34x5hxxmmd8gurqwpsqy2hwumn8ghj7un9d3shjtnddaehgu3wwp6kyqgswaehxw309ahx7um5wgh8w6twv5q3gamnwvaz7tmjv4kxz7fwv3sk6atn9e5k7jfd9vp

What I have been thinking about and will most likely be moving towards is a pluggable nostrscript that takes various values as input (WoT score, the note, total zaps received from that user) and provides it to a pluggable spam filter so it can be constantly updated to fight new spam tactics.