Does everyone know this? I don't use the Visual Editor, but after fixing an edit to the Shiverthorn page, I tested changing the max stack in the infobox using the Visual Editor (the one selected from the drop-down menu on the page). I was attempting to see what the previous editor was doing. When I changed the max stack, it deleted a line of text from the page. It highlights that text when I click the edit button on the infobox, and then deletes it when I hit Apply Changes.
Anyway, my point is, some damage to pages is unintentional because the stupid editor doesn't work right.
Yeah, the Visual Editor accessible from the dropdown menu next to the edit button is still a fairly new tool with all the potential problems that entails. I'd disable it on this wiki to avoid said problems, but it's supposedly already disabled.
I always recommend that no one uses the Visual Editor in the first place, since it always breaks things and messes up pages no matter what version of it I use. Inserts span tags unnecessarily, breaks templates, etc..