I mostly agree but there is a small effect: "Claims spectacular proofs with flawed arguments" might still be reason to doubt his future proofs more until verifi

I mostly agree but there is a small effect: "Claims spectacular proofs with flawed arguments" might still be reason to doubt his future proofs more until verified. And mathematicians do use such criterions before reading unverified claimed proofs of hundreds of pages (not uncommon). And since some proofs target tens or hundreds of persons, that can be a problem. I've read such stories, though I don't have a reference at hand.