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.
I hate communities that are hyper strict about pointless things about that. The post volume is rarely enough to justify that level of filtering. Besides, hardware is definitely related to self hosting.