I think once people blow up and become a "hero" they feel validated and start talking about things outside their expertise or feel the need to comment on controversial things. Its all ego. I believe this happens with Nobel Peace Prize winners so much they named it. Called Nobel disease or Nobelitis

Nobel disease - Wikipedia

I think this can happen to anyone who gains some kind of recognition.

Classic

such as saylor, andy back, jamie slop and all the cunts, smiling with a knife behind their back

Many such cases.