By "improperly" I don't mean a disagreement on the project's direction; apologies if that wasn't clear. I mean using things like stalebot, shutting down discussions and increasing the demand on other people's time in your community just because you personally don't have the time to keep up.
If you have reviewed a patch and you don't think it's the way to go, or you don't think it can be maintained going forward, that's fine. If you set up stalebot to close and lock merge requests because you don't have time to review, that's something else.