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hey, thank you for the question.
As highlighted in above post, we run our core transactions on hive only. Users are required to have a hive account to use actifit. Accounts on other chains are not optional.
We have been able to onboard lots of users over to hive based on this alone.
We do support crossposting to other chains, as a doorway for more rewards to users who so wish.
In essence, and if you go through above post, we support hive in so many ways and have been around for years. Have another look at the post in details to better understand our commitment to hive and the added value we provide.