I generally agree with you here. However I think there's some nuance, are you suggesting discord add a way to export all the data of a server (copy my messages)

I generally agree with you here. However I think there's some nuance, are you suggesting discord add a way to export all the data of a server (copy my messages), so you can move it to another platform? It sounds like potential privacy issues/violations to me. I think it's not that simple. I don't disagree they should reasonably allow you to easily migrate.