Well, that such was not, who makes the bot, then do a captcha to three kilometers. Then you will have 100500 new grateful users.((( Which is also the blame here, because it is impossible to work. 5 Satoshi to solve the captcha in 10 steps hands - thank you. And bots, they are in 50 and 100 steps are to solve. Here you do not see who is a bot and who is not.