I agree, it is indeed very curious timing. But lets apply Occam's razor here. What makes more sense?

A cabal of rich people pressuring an unrelated gaming chat company to ban a subreddit which is attempting to destroy a hedge fund?

OR

The increased popularity of WSB leads to increased scrutiny of everything associated with it and discord has a brand to protect?

I'm gonna go with A).

It's simpler to just ring a friend of a friend than to worry about WSB Discord rn. At this exact point in time.

> friend of a friend

there is no proof that this connection exists

I'd bet my house all the CEOs and Wallstreet have less than four degrees of separation between each other.