I could show you the profiles of at least three people that say that they don't much backlink.
One of those people, I believe, only uses twitter and G+, and to me - that's not doing much in the way of backlinking. The other two I could show you claim that they do not backlink at all.
Me, I do the minimal backlinking, a few social networks, a few bookmarks, and Best Reviewer, Folk'd, and Redgage. Oh, let's not forget Digg.
Yes, I could easily join a dozen other backlink sites...I've got better things to do with my time than spin off backlinks into the cyber ether.
I'd rather be creating new content, really.
I think some moderation is in order here - I think backlinking some is fine, and beneficial. I think that spending too much time doing it is an indication that you know your content isn't up to snuff, and you're only trying to compensate.
Not "YOU," of course. I don't know you.
Screw the games. Just do your best, your very effing best, and it should pay off.