Not the person you're replying to.
>At least, that's the only way I can imagine someone thinking to themselves "oh, this kid is being beaten up, his stuff is being destroyed or taken from him. The best strategy is clearly to be less upset about all that"
This is a straw man. No one has claimed anything like that at any point in this thread. You are exaggerating their point to make your own, and it lessens the impact of what you're trying to say.
>Telling people to not give a shit about the response to your work is missing the point of why people do it to begin with.
When I create things, I create them because there is something inside of me that needs to get out. I don't create it for other people. I create because there is no way for me to contain it otherwise. It feels very good when other people like what you create, but I wouldn't call it the reason I'm creating something.
If you constantly seek validation from others, you are going to be let down and discouraged, because people won't consistently provide that validation.
That is separate from whether or not people should ignore bullying. If you see bullying happening, you have a duty to put a stop to it, report it, or otherwise address it. If you're getting bullied, you shouldn't ignore it, but report it to whom you can. But the sad fact of this world is that you're unlikely to receive justice for it. The only thing you truly have control over is your own reaction. Exert your control.