Actually all hobbies or profession, sure got cocky people one. Last time i siao on fishing, go fishing forums, lots of cocky fisherman.
I took up model plane flying, even worse, cockiness at it's highest level, though got some kind uncles as well.
I took up diving, still not so bad, but the face of most divers are super cocky.
Try joining cars or bikers forum, wah piang, class act.
The lao jiao most of the time will form the cocky population, but they are ok, they earned their right to be cocky. It's the youngster cocks that are most unbearable
Photography as a hobby is still ok, most are nice people in my opinion. But cocky photographers sure have. Worst are those who start their C&C with a *LOL* remark