Everything you say is true. Luckily, none of it applies because no one goes to CodeGolf for homework questions.

CodeGolf will look at other SE sites, find homework questions, then take those questions back to codegolf.

Thus, CodeGolf gets an interesting new flavour of challenge (provide the worst solution to a problem) and the person who originally asked the question doesn't have to deal with the codegolfing. They do, however, have to deal with the rest of SE.

I guess downvotes are because you appear to think that codegolfers are answering in the threads where the questions are originally asked.