There are some elements of something The_Donald-like, but it's true that it's
not (yet?) the same thing.
They push a lot of very strong and completely unsubstantiated conspiracy claims
in particular, and they'll quickly accuse anybody dissenting of being a shill or
having an ulterior purpose.
Here's a good example I think:
https://www.reddit.com/r/wallstreetbets/comments/l93d18/gme_...
This is good OG WSB content, written by one of the users that was in on the play
from the very start.
But there's the problem: since he knew what he was doing, he managed to sell at
the right moment and make huge benefits. That doesn't fit the narrative nu-WSB
wants to push. So this very good old-school WSB post can't even get half a
thousand upvotes.
Meanwhile post some vaguely conspirationist anti-wall street article and skyrocket
to the top of the frontpage.
So yeah, it's not The_Donald, but there's definitely this strong anti-system, populist, "everybody is out to get me" conspirationist, fact-adverse mindset that you find in these types of communities.
Note in particular that, somewhat ironically, WSB calls itself "4chan with a bloomberg terminal", so it seems fitting that it's following a similar trajectory of ironic edgyness turning genuine as new people get in and take it at face value.