Would also like to see evidence of their campaign, which very well might exist, but I don't know where.
Here is the official Bitget signature campaign
https://bitcointalk.org/index.php?topic=5462250.0As far as I can see, none of the ones you listed are officially campaign participants. But it would not be the first time that we have a private campaign where users shill for a brand.
And yes, it seems to be organized (or one person manages all accounts) because after being inactive since July, all accounts have actively started writing in the same way about Bitget. I will probably tag them all.