@tokyo_0 Biggest concern is rate limits and the option to send them out as public instead of unlisted (this could impact federated timelines of all instances that are connected to us via relay).

My ideal solution to this problem is to actually take the too archive and find a way to host it in form of a website. Then have the user's first toot be: click here to view my older toots.

Reposting is fine, but users should know to do so before doing the actual migration of the account so that followers aren't spammed.