Users can upvote their own posts, yet they don't by default upon posting them. Reddit, for comparison, continues to allow users to remove their own-post upvotes, but upvotes them for the user by default. Other forums like Stack Overflow disallow own-post upvoting.
This forum has the worst of both worlds, for users can gain an algorithmic advantage by upvoting their own. It might seem like a minor issue, because it is. But it's an issue in my eyes regardless.