I use several Stack Exchange sites, with Stack Overflow being the most usual for me. I strongly agree with the points threshold (needed for every action in the Stack Exchange sites). I've never had trouble earning enough points to allow me to do various things (down vote, comment, edit). I earn most of my points because of the questions I ask. I don't think that I ask too many questions, so I think I've got good balance so far.
I have noticed that here on Cross Validated my questions (and many others that I see) get few views and also few upvotes. As far as I understand the norms of the site, if the question shows it was well asked and it deserves attention, you should upvote. I try to follow that when I read other's questions. I understand that Stack Overflow might have 500 times more users than Cross Validated and that might account for the difference. Also, given the characteristics that questions about statistics typically have (they need lots of comments to understand what the OP was referring to and if they tried this or that), I believe that many questions end up with a lot of discussion in the comment section and zero answers.
Finally, I am astonished by the diversity of the questions being asked here and the amount of time and knowledge that is needed in order to approximate to a solution. I believe that we need tons of new members in order to cover so much variability. The statistical knowledge of people asking here is also very variable (I consider myself as one who is just starting to understand and apply it to my research but I've seen some questions that fly really high). So I wonder how to raise the happiness of the users. Questions come in at a much higher rate than the answering rate. I have asked some questions that, in spite of having upvotes, do not get much attention. My only question that did grab some attention was 99% about programming in R (in fact was migrated from Stack Overflow).
I have found questions I want to comment on to get further into the analysis and help but I can't get the points needed (again, first you need points for question or answers and it seems a bit like a vicious cycle). All these situations keep me wondering if I'm the only one that is having this concern.