Keep the posts - but censor them also just clearing them out won't work. It's just an a*hole move to remove content which may help others. I may revert "blank edited posts like DELETE PLS or ." whenever I see them.
Thread/post deletion will only occur if there's some legal background and most of the time there isn't so censoring is enough, if you want to censor your name or anything that contains your personal info you can just hit me with a DM and I'll nuke it according to the EU law (if you live in the EU) otherwise you can just edit the posts and remove troublesome information.