just to avoid bad game experiences
This. So much this.
Removing these maps stops people from being able to create games on horribly broken maps, which will improve the game experience of new players, if they decide to join games on these terrible maps.
There should be some standards for map acceptance. Sir Nick kind of already did it, but people theoretically could just spam WarLight with terrible maps exactly for this purpose. Imagine if anonym had this idea...