Practically, the entire group of most active Hive users you see every day can be found on Steem, because that's where they created their accounts and only moved after the Justin Sun thing ;) So each of these people also has an account on Blurt. I know because I'm one of them ;)
After that time, not as many accounts were created as you think. Hive regularly discourages new users ;)
However, I didn't feel like messing around with data selection and filtering it through blockchains.
The people who have been here long enough to have Steem accounts already chose a side. I know because I'm one of them. I even gave Blurt a try with my other, Steem spawned account. It turns out you guys don't appreciate dissenting ideas over there, either, and I'll be damned if I'm going to pay just to let you know how foolish it all is.
Not surprised that this whole post happened just because you didn't want to put a little effort in. The whole Blurt scene has a very 'lazy scam' vibe.