To be successful, the like/dislike concept demands a healthy community where the "good guys" outnumber the "bad" ones. If we're saying that we have a few good guys, a few more bad ones and a bunch of "I-don't-care" guys, we're clearly not a health community. Yet.
Maybe the problem that is being attacked is just the symptom and not the root cause of the disease. I do agree that less is more and I'd like a pointless (or point minimum) community, too. You don't need points to be recognized, it's just the way americans do things - they like to put numbers on everything. If you're truly contributing with good quality content, you'll still get stopped in SAP events by people asking "are you XYZ? coz your blog helped me very much and I'd like to shake your hand" even if you get 0 points for it. I'll tell you, that's worth 100k points everyday in my book.
Cheers,
Henrique.