Do you guys think it is okay to delete posts and answers after they are answered or commented on? I have seen where I see comments related to a reply that does not exist. Comments that relate to another comment that does not exist. It seems to corrupt the threads. There is no real reason to do so. Editing of a comment is allowed only if done within 5 minutes or else you have to delete it and re-comment. I do not understand the reason behind it. If you are allowed to delete, you can surely be allowed to edit.
I started off with a comment, but decided to upgrade to an answer.
Deleting posts and comments, even after a question has been resolved, is almost never a good idea.
Why, you might ask?
Because the purpose of any Stack Exchange site is to create a library of expert knowledge for future generations. It's never just about the asker and the answerer. The goal is to build for the future.
Deleting posts after a question has received a quality answer degrades the long term usefulness of this site.
Please don't do it!