@nprofile1q... - I find MathOverflow extremely useful myself, because it attracts lots of experts who can help me with problems I'm stuck on. However, I suspect you're right that "gamifying" the process of asking and answering questions by giving people points and publicly displaying their "reputation" scores could be off-putting to lots of women (and also certain kinds of men).

When I suggested that women might not enjoy this competitive approach, someone reacted by pointing out the existence of highly competitive women tennis players, and then the conversation digressed to the meta-question of whether this analogy was useful - and the meta-meta-question of whether analogies of this sort were ever useful. I found it quite unsatisfying to see my point shunted off in this way.