I’m getting annoyed with people that ask a question, have the community answer their question and troubleshoot over several days, only to delete their post and the solution.
The person asking the question is often providing the least amount of effort, so why should they have exclusive right to delete the contributions of others?
Possible fix: have a per-community option to only request deletion.
Instead of blocking them I wonder if archiving their posts and reposting their questions with the archived comment section would be better. I’m personally less interested in punishing an individual user who’s using this space selfishly (as much as they might deserve it) than I am in making this space more useful for everyone, and I don’t know how either of these proposals would do that in the short term (arguably they might in the long term by changing user behavior, but that seems like it really would take a long while).