IIRC that was also done in a fear that they'll start using comments to train AI. And some users claimed that their manually removed comments from weeks to years ago reappeared again.
Answered questions becoming unanswered is such an annoying thing. I'd prefer users who are willing to delete their comments day, weeks, months, years later to not reply at all and let someone else answer.
And why Reddit, or anybody else, allows modifying comments after such a long time is beyond me.
EDIT: These days there are even active users who are wiping their comment history on a regular basis. Very strange mindset.
Reddit will delete anything remotely controversial if it contains referenced facts. They banned and deleted my account for simply stating the 5th amendment prohibits requiring incriminating yourself to exercise a right. An Ivy League educated lawyer dug up the comment one year after I posted it, told reddit I was distributing illegal legal advice, and had my whole account nuked.
I got suspended for criticizing the state of Israel’s treatment of civilians in occupied territories, but they didn’t delete my account, though I stopped logging in after a week. (Logging in retains your subscriptions). I've seen plenty of similar comments to mine so I assume it was the work of some oddball who I responded to that has an connection to somebody who works there so they could pull some strings to suspend my account.
At the same time Reddit was hosting Arabic speaking subreddits with communities that openly support terrorist groups.
Considering that some of the content may well be illegal in a few EU countries, I was surprised Reddit does not more proactively nuke it to protect themselves.
What I meant was I was permanently banned so I can still login and get notifications of responses to my commments, just could not vote or change any of my subscriptions.
or "furiously sleep ideas green colorless". Reddit once started banning users for deleting their own comments, so people started editing them to random words instead.