Please don’t expect the community to give you answers to your questions which you then delete right afterwards. Those of us who put time into answering your questions are not doing so just to serve your personal needs, we are here to help build a community knowledge base that others can search and reference.
This has become a chronic issue with Lemmy and its starting to feel like it’s a waste of time to answer questions.
I’m still undecided about their own text (deleting comments or post text disrupts the conversation but there’s valid reasons), but I don’t think the OP of a thread should have any control over the existence of that full comment thread.
Maybe some form of engagement or time limit would serve. If the post is empty or low engagement and less than 2 days old, it can go. After that it’s up to mod?
Or just do it like reddit did, where you can delete your post content and remove your username from it, but the thread and comments remain.
Though with how the fediverse works, it’s possible to spin up a custom instance that highlights deleted content instead of deleting it, meaning the attempt to get rid of it can be what brings it more attention if anyone has decided to do it. Just like with vote identities, they aren’t anonymous and there are instances/sites that just show who voted for what.