and to add to this: the act of disagreeing and changing the page is also not automatically vandalism. If I feel that a page should be restructured to stress a point (or to bury a point) or don't like how the page looks, if I believe the wrong template or category is being used, or even (yes this does happen) if I think that the page should not exist on Fanlore, all of these can be edits done with good faith and be part of the normal give and take of wiki edits. What typically happens is someone goes to the Talk page and says: "Why you do that? That wrong! This right!" And then I explain my POV, they explain theirs, we tussle (hopefully civily), we sometimes ask others for input, we wrestle some more and eventually we reach a consensus and/or agree to disagree (or if we don't, we ask the Wiki Committee for help). But in the past 4 years on Fanlore we've only had to ask the Wiki Committee a few times for help. And unless the disagreements touch on one of the Fanlore policies, there is a lot of room for different POVs and different approaches to edits.
Disagreements also not vandalism