They don't invade. There's a type of mentally ill autistic that has ptsd that tries to cathartically purge his pent up rage over being so disturbed by emulating the behavior that made him angry to begin with. They come off as technically an anger monger, a troll. They have no lives and feel just like you do. I have relatives that are like this and understand human psychology probably better than normal people do. I don't actually do it myself and always found such bait immature and overly obvious but to the disturbed entity they think everyone is dumber than they are and giggle after spreading their misery. They probably go outside a lot and or have jobs and that's why they can't let their bullshit go and instead try to 'feel' with you as you chimp out at the bait and say what they feel deep inside. It's a defense mechanism of the sadistic to never share genuine feelings and instead to 'tease'. They should have been killed at birth, this teasing catharsis disturbed type of autist. Even if they don't go outside nor have jobs they probably get constantly reminded by going to normal sites. >>60059
No one ever went to imageboards to get laid so this image nor newer images like it is/are never going to be actually genuine. No one tries to get laid via hobbies either. They go to bars or churches or malls or themeparks or use meeting sites of various sorts. Etc. It's paranoia and taking bait too seriously to think that happens.
In regards to hobbies in general though a depressed type would hate on people for being too normal to have a hobby. After all there's meetup groups for normal people with tons of hobbies to meet up with one another so I can see it triggering a full on schizo. The word hobby is almost pointless after all. It means you did something and were not paid really, however one could say that someone with a job is more normal than most imageboard types so then it can go in the opposite direction entirely.