The problem is how many celebrities will leave twitter and facebook to join hive?
They will arrive when there are enough normal users, the same as they did on all the other platforms.
It's just like the scenario when ronaldo went to italy, it brought a huge change to the serie A.
He moved because of money - there won't be enough money for celebrities until there are enough normal end users. millions of them.
Series A became more relevant after Ronaldo came in ... Italy's economy pumped by that news