I've been engaging on rugatu a little bit, lately. I think it is an excellent concept, but I suspect that there is a small group of users who are colluding.
Take a look at who is accepting answers. It seems like the user cscoxx and some other users are colluding to grab the rewards. Check out his profile and dig through his history. Note the low quality of the accepted answers that he is involved in. I'm not sure how and where exactly he is profiting (he DOES ask (very random) questions himself, but then goes on to accept extremely low quality answers) but something is up. I hope he's just manipulating the system to gain karma, but right now I'm not sending any
BTC to rugatu.
edit: Ugh, note to self: search bitcointalk before engaging in anything related to bitcoin. This issue is not new and has been happening for a long time. I'm removing all my answers and won't come back. Might as well
annoy them a little Hahahaha I see what you did there... I understand that you may not like it. The reason cscoxx and other users show up everywhere is that they are the most active senior users and have earned certain "admin rights" that come with lots of karma. So, they moderate, comment, etc. Ideally the community will grow and become more stable and smooth working, but I completely understand your point in checking at sites like this one first.