Google+1 Exchange Site (also Fb, Twitter and Youtube)

Not sure if its been posted on here before but I found through a friend tweers.com Simply register, add your site (with Google+1 script added) and use your google account to give other sites +1's, this adds points to your 'account' and then you can give points away for people +1 ing your site. I have used it for a few days now, averaging 10 +1's a day. Its free and has given me +1's so thougt I would share it with you lovely bunch, oh and as I mentioned you can use it for other social media platforms.....No I am not affiliated in anyway with the site before someone asks....:p

The idea or sharing +1's is nice. But I think it's kinda tricky. Especially when you do it in a forum thread. I mean there must be some kind of pattern when 15 users all like the same websites.

Is it password protected? I'm just wondering if google is going to figure out a way to void these things. Sites are popping up all over to do this.