I have nothing against this.
But i prefer to have control of what posts i upvote.

Some times because i dont want to upvote a post if i disagree.

But also because my upvotes gives so extremely little as it is now, that i must see to it that i have at least 80% voting power, i am working that up to become at least 90% now.

But as long as many groups of friends help each other out by upvoting each other, i believe this might be a great idea for many people, and i wish you the best luck with this.

And hope you have a great day when you read this.

(PS. never ever mention this in the general chat, there is actually people there that will hate you if you have friends that help each other with upvoting each others posts..)
I was called a asshole and similar things yesterday because some of them visited my blog and discovered that i had a facebook group where we kind of do the same, only it is not automatically, and we only upvote those posts we like.
And then they will try to turn the whole chat room against you and start to tell all kind of shit and lies about you.. ;)
(Just a friendly warning, there is a lot of Nazi self appointed police in that chat..) ;)