I've noticed that some people are in such an automatic stupor nowadays that they're probably not even aware of what they're doing most of the time.
Maybe these spammers are such people.
You can tell because if you mention certain specific things they get triggered into their pattern of behaviour on cue in a similar way all over the internet. I think they start to disassociate from their own conscious activity to cope with trauma and stress. Similar to how cops just become automatic.

That's my theory anyway.
So maybe Fuji deals with these sorts in his fanbase all the time. I'm sure there are many like this after covid. I've seen too many in real life nowadays. You cannot talk about certain triggers or they will just meltdown and go into crucifixion mode.