The puzzling StackExchange site has had several MathJax-based puzzles recently, and I suspect that some users here (and at some other SE sites) might find them interesting. What is the right way (if any) to inform the community of such items that appear on other sites? These will not get enough traffic to warrant inclusion in the "hot questions" list.
I know that I've "cheated" and already informed this site of the puzzles, but that only works once, and I don't want to abuse the system. Is there any approved way of doing that?