You're looking at this completely wrong. Raekwon and Beanie gave East a LOOK, the same way collabing with Breezy and Nas did. It's a way to expand his fanbase to folk who never seen or cared for him before.
When East collabs with these no names, he giving them a LOOK. Nothing wrong with that.... but not if that's all he collabing with. There's
levels to this shyt bruh.
For East himself, these local artists don't do anything to expand his fanbase. He should be collabing with rappers poppin in other states: Bay Area, Philly, DMV, Atl, etc. That's how you expand your fanbase, its a tried and true formula that's worked for ages and is part of hip hop. He already got the NAME (que reasons in first line), now its time to grow the following. He's not doing that, he's stuck in the same damn spot and to an extent going backwards.
He can collab with the locals no names while collabing with people poppin in other markets, but if all he doing is collabing with people who ain't popping in their own city. Soon he's going to establish himself as a local level rapper who has no nationwide appeal. He'll turn into one of them underground artists that nobody gives a fukk about except a small core following.