The board treats new users as untrusted. To move up a trust level, a user needs to have entered a certain number of threads, read a certain number of posts, and spent a certain amount of total time reading posts. It’s automatic.
We could change the default settings for any of those parameters, but we haven’t gone there. This only becomes an issue when a user registers and immediately starts posting in one thread, but doesn’t browse the board otherwise. A post-season game thread is just the kind of unusual situation where that can happen. If multiple moderators are on their toes, we can minimize the issue. (I can’t speak for anyone else here, but “real life” overruled my being continually on the board this evening.)