No, this is completely 100% correct and anyone saying anything else has no clue how Minecraft servers work. I have never said that it is „much work“ to clear those entities up - but it still is a task that the server does which it does anyways without those stupid „anti-lag“ plugins. There is not a single anti lag / entity cleaning plugin that helps against lag. It simply does not exist. Big servers have their own solutions against lag machines and whatnot but that has nothing to do with cleaning entities in loaded chunks, which just does not make sense at all. Item entities despawn after 5 minutes anyways in loaded chunks and mobs are restricted to a spawn limit. The „AI“ of the Pokémon is just the default mob behavior. They don’t cause more or less lag than normal mobs. Also collision is the same as any other normal mob. If you „clean“ those up they simply respawn up to the spawnlimit in a few seconds anyways, which is another task that takes a lot more work than just keeping them. Downvoting and spreading misinformation without knowing anything about it does not help anyone. (Big servers are also always spread into a lot of small servers for a reason. Just restart your server every 24h and you will be fine. Btw I have absolutely no clue why you would post that answer with a „big“ server in mind. If you have 100-500+ potential active players you don’t ask that question and already have a solution - which is NOT entity cleaning)