"backing up" and data takeouts are not data portability, cause with mastodon you can't actually move posts between servers. so it's like, literally what's the point if you cannot actually move your content and it's gonna be a flush and start new again, which in that regard is no different than moving from one proprietary platform to another
sure, i can see why some might worry about this but like i said in a different comment, for me, most social media, ability to go back and reference years old random conversations just isn’t of any kind of critical “identity”. more important to me is just having a reference of who i’m mutual friends with.
other than some family pictures on insta, i can’t remember the last time i’ve gone back and looked at old conversations. i can imagine why some people might need that, but for Mastodon i mostly use it for chatting with friends or light ephemeral type stuffs.
for artists, content creators, their posts are literally their body of work. this is why people don't move away from twitter, for example - while the audience is important, having posts there is also just as important if not more, cause these posts are the thing that brought in the audience in the first place, and may continuously bring in the audience thru people browsing profiles and sharing/reposting.
besides whatever the content of posts might be, not treating it like 'a part of your identity' when it is literally a reflection of it, i don't know, seems a little dismissive of yourself, but if that's your prerogative, sure. it's super not the same for everybody. for some people, their stuff is either more important to them personally regardless of what it is, or it holds more value with the amount of work put into it, or both.
it's a little bit obtuse to look at platforms filled with posts, and then go and think that those posts are of no value, when it is literally the point and the core of those platforms, don't you think. like, you don't have to imagine. just look at those places that are filled with art and artists, content and creators.