I was on reddit for well over a decade, and performed a lot of free labour, not just as a mod but putting real thought into posts and comments.
Anyway, I requested all my data so I could have an archive of it, then ran my comments through PowerDeleteSuite a couple of times for good measure, and honestly was shocking how quickly I stopped having feelings for my old account.
I've also had no use for the "archive" of posts and comments over the last 10+ years. It just made pulling the plug easier.