I should've been more explicit. My post was on the Ask HN page, near the top; then it suddenly disappeared, from one moment to the next. My guess is that would

I should've been more explicit. My post was on the Ask HN page, near the top; then it suddenly disappeared, from one moment to the next. My guess is that would only happen if either too many people clicked "hide", or because of some other moderation-type decision. Thank you, though, for taking the time to try and help. If I may ask, how did you find my previous post?