Hello, nutildah I have followed some accounts and I can see the activity of BTT accounts between 4 to 6 I think all accounts are managed by one person you can see page 27 to page 28 Links: https://bitcointalk.org/index.php?topic=5475833.520
You havent given us much information to work with. Every bounty thread is filled with such activities.
You could have at least singled out the accounts you suspect are alts, and explained why you think so.
There is a lot of reasonable proof here you are very experienced from us and you can see all BTT account activity between 4-6-7 and seeing them in the same series it is clear that all the accounts are managed by one person.