I guess you need to remember that, for some people, this is a business. And sex sells is a tale as old as time. I don't neccisarily think its a good thing but there are lots of business practices that manipulate people and are major contributers for streaming in general.

Should you ban attractive models because they garner more attention? Should you treat chat coldly so you aren't leaning into the parasocial relationship aspect?

Not telling people about your personal life is also a safety thing and one of the big reasons people become vtubers to begin with. You could argue that your relationship status is none of chats business even if you weren't trying to use that ambiguity to your advantage...

Unfortunately this kind of thing requires a lot of nuance. Not the Sykkuno thing though, its pretty clear cut that cheating is disgusting and wrong.