Non-compulsory voting has the disadvantage that certain people will refrain from voting just because of the inconvenience of going to the voting booth and others won't, which may bias the result of the election if the extent to which voting would be inconvenient correlates with political positions for whatever reasons.
r/Fitness does a weekly "Moronic Monday", a judgment-free thread where people can ask questions that they would ordinarily feel embarrassed for not knowing the answer to. I thought this seemed like a useful thing to have here - after all, the concepts discussed on LessWrong are probably at least a little harder to grasp than those of weightlifting. Plus, I have a few stupid questions of my own, so it doesn't seem unreasonable that other people might as well.