One example close to me (I guess everyone has their own) is how the Spanish Wikipedia systematically misspells the name of dozens of Spanish cities and towns, c

One example close to me (I guess everyone has their own) is how the Spanish Wikipedia systematically misspells the name of dozens of Spanish cities and towns, changing the official toponyms for largely invented ones that "sound more Spanish". This has been the source of endless debates that haven't done anything to change the position of the senior contributors in control. So we have an absurd situation where a non-trivial amount of Spanish toponyms are more accurate in the English Wikipedia than in the Spanish one. In the global context, this is probably a small issue. And yet I wonder how many people are put off contributing when they perceive that a small in-group is able to push their opinion like this.