Just catched AutoPligg 2.5 in using duplicate accounts. I've "registered new accounts" last night from my list and posted some comments with it tonight. Went to check live-comments.php and saw my comments and few minuted later other comment with same account. Checked the profile page, and there are 137 comments from this account. All of them are of course, spammy AP comments. So, it sctually doesn't register new accounts all the time ( I was wondering how the heck it register new account so fast ) but just add a username and password form already registered account on that site.