checked Blind before accepting an offer out of curiosity more than anything and found a specific, recent, verifiable red flag about the exact team I'd be joining

Wasn't looking for a reason to say no, mostly just curious what people said about the company. Found three posts from the last two months about the manager I'd be reporting to, all independently describing the same pattern. Declined, politely, without mentioning why. No regrets, though I know anonymous posts aren't proof of anything on their own.