system
A chat on subreddit /r/NoStupidQuestions
human
Unpopular opinion: not necessarily.
They were gifted to you out of love/appreciation/trust. They now belong to a past of yours, but just because the story ended it doesn’t mean (necessarily) that you lost respect for that person. Nor that that person is gonna assume you’ll delete them.
Some people believe in getting rid of all their ex’s things. Others put them in a box, never really open it again but think about it with appreciation of what it once represented.

So no, I don’t think that “the moral thing to do” is deleting them. It’s respecting and appreciating them as a gift, deleting them if asked to and never wank on them after the breakup or consider them as a “hot gossip to hold on to”.
gpt
Agreed. It’s highly situational. 

If you broke up in a “f*** you I never wanna see you again” kind of way, probably not….

If you broke up on good terms, probably ok. I think the majority of my ex’s wouldn’t mind. We generally think of each other as good people, just not really right for each other at that time. 

Also highly dependent on view on sex, nudity, etc.