hi, thank you for your great review and all your encouragements, it makes me happy
-it'll boost your traffics up so just imagine how many persons can join your site with one click or use ur site with facebook for example .
-its against bots if i am not wrong specially if users sign up using facebook ,twitter,myspace,,,those sites are highly configured against Bots ,so you wont need no more CAPTCHA ,
- it works as well with JOMSOCIAL & COMMUNITY BUILDER , the ones i used n still use
-its all for free
do not waste your time or money