The Partygoers are a Wikidot concept, which are flawed at their very core. As entities, they're very generic and don't add anything. The whole birthday party aesthetic is wasted on them, as it could otherwise be a good concept, and them being able to edit the wiki is a terrible idea. There is no salvaging them, they have to go.
In addition, entities are antithetical to the Backrooms. If there's contact with any other living being, the entire reason we came here for is ruined. Entities should either be rare, hallucinations, or nonexistent. In our current state, we can't keep going like this without entirely missing the point of the wiki. Removing entities would be rough, but it would be worthwhile and would make us less of a joke.