If it was deleted, something went very wrong. I have no idea what. Maybe it was considered spam. Maybe they're a recurring troll who got banned. Maybe it accide

If it was deleted, something went very wrong. I have no idea what. Maybe it was considered spam. Maybe they're a recurring troll who got banned. Maybe it accidentally revealed some personal information and they thought the better of it. Whatever it was, it's more than just "I asked for help and then forgot about it". Which is rude, of course, but I'm afraid you have to expect that on teh intarwebz. Everything is asynchronous. It feels like a conversation, but it's not. People are doing a million things at once and they often just don't return to things. There's a very good chance that somebody involved is a jerk, and indeed, the world would be a much better place if we all tried to think out the effects of our actions on others. But I'm afraid you're going to have to assume that not everybody will.