I have noticed this is occuring more and more. It is a problem that started to crop up on reddit but now I’m seeing here more often. Do you not want other people to benefit from the answers you received? This community is kind of pointless if you just get an answer and wipe it from the web.
One time I asked a question because of someone who was being creepy IRL and didn’t want to risk said person coming across it by chance and thinking I asked that question bc of them, no matter how unlikely that was. Asked on a niche subreddit. The question itself was asked in a way that in no way indicated why I was asking, so to an outsider it just looked like a normal question that I deleted just because I got my answer.
I wouldn’t delete otherwise.