Very few people actually interact with the owner of id number 3 on this forum, I never had a chance to do so as he has only been active for more than 1 year since registration. Theymos described him as arrogant, but not arrogant in the general sense. I really believe that he exists, but he wants better privacy as someone who offers privacy for his intellectual work "bitcoin".
for long time now, i am always thinking that one of us here is Satoshi specially those mining and TA experts? i sometimes try to think that this account or that account is satoshi alt account.
Satoshi had 526 posts during his time, 55% of which were on Development & Technical Discussion boards while 26% were on bitcoin discussion. You can see the distribution of satoshi's posts in the image below is more complete, he's more likely to be a developer than a miner even though he's capable of it.