Neutral on Holiday maps; No Support on Seasonal maps. Personally, I like holiday lobbies, and I've seen these kinds of special themed lobbies on other servers, so I know it can work. Despite this, there are a lot of reasons why they should't be added, such as the ones stated by @Gothchick74 . This is why I'm neutral for Holiday maps. As for seasonal maps, people from all over the world play Mineverse, so I think this wouldn't be a good idea.
