Having mics on a hat doesn't mean you have to keep your head still.
When a girl with big boobs and a low cut blouse walks by, I just lift my hat off my head and watch the bouncing walk on by! Not gonna miss out on everything for the sake of the recording.
Also, I used to try to advise people to keep discussions stealth stealth, but others don't worry about it, so why should I? As long as you're not blatant about breaking rules and laws and infringing on people and bands, then I've stopped trying to be the stealth police around here and choose to join the discussion rather than pretend stealth doesn't exist. Kinda pointless to pretend it doesn't exist anyway, isn't it...and as many have pointed out, many stealthers aren't doing it to get around any rules.