I have a question that why people scare to show their identity if they are doing legal? Why people do not use real identity??? It makes here a more trustable market!!
Because if you became really successful, anonymity can save you lot of troubles.
Sure, there are some ppl who needs to flaunt their success, but then they have to deal with annoying spammers, beggars etc.
personally, if I would ever be a millionaire, I'd be much happier when nobody knows. But this depends on personality.
You are completely correct, furthermore there are some robbers,... that may disturb you but when you want to deal values under say 100$ this means that you are not a millionaire and there must be other reasons. I am a regular user of bitcoin but I am really concerned if some scams continue to cheat and also because of tax matters, governments may ban bitcoin! Although there is a weak probability that all countries ban it but many of them may do it in near future, definitely.