the best thing to do is to migrate by deleting your content from Reddit and moving it elsewhere
That’s not really realistic for the type of content that is Reddit. It’s not like blogs or videos or photos that the majority of people have on Reddit. Most people’s “content” on Reddit are bookmarks/links or comments in a discussion threads.
It doesn’t make sense to just re-share a dump of all the links you once shared on Reddit even if you have a list of them.
It also doesn’t make sense to re-share comments out of their discussion context else where.
Not sure how anyone can say “GPG” and “Works great” in the same sentence tbh. GPG is a usability nightmare except for the most advanced users who use it. Good luck trying to get your house contractor or doctor or representative or non-techie friends and family or really anyone to give you their “public key”