manitcorShreddit - Remove your comment history on Reddit as deleting an account does not do so.
fcuksjust to add that i have read that your comments won't be deleted/edited from blacked out subreddits, so maybe worthwhile to wait until the subreddits are back up (if they do come back!)
I found this out after I deleted my account which is a little whoops as I can't now log back in and finish the job haha.
i expect the period over the coming 2 weeks to be your opportunity to do this, some subs wont reopen but most will reopen for 2 weeks then close again on the 30th. if you want to keep anything, that will be your time to do it. the only other time may be shortly before reddit goes under entirely