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.
Another user made the same complaint on !selfhosted@lemmy.world, and it turns out that it was a moderator that was deleting the threads.
Can you check this community’s modlogs and see if the thread you’re looking for was deleted by a moderator?