  Social media platforms have witnessed a dynamic landscape of user migration
in recent years, fueled by changes in ownership, policy, and user preferences.
This paper explores the phenomenon of user migration from established platforms
like X/Twitter to emerging alternatives such as Threads, Mastodon, and Truth
Social. Leveraging a large dataset from X/Twitter, we investigate the extent of
user departure from X/Twitter and the destinations they migrate to.
Additionally, we examine whether a user's reputation on one platform correlates
with their reputation on another, shedding light on the transferability of
digital reputation across social media ecosystems. Overall, we find that users
with a large following on X/Twitter are more likely to migrate to another
platform; and that their reputation on X/Twitter is highly correlated with
reputations on Threads, but not Mastodon or Truth Social.
