Straight-forward: this [question](https://rpg.stackexchange.com/revisions/171928/1) has caused an edit war and a close-reopen-close war. The argument for tagging and reopening is
>The splat book only exists in DnD-5e, so it's not guessing – Pureferret

Can/should it be tagged as dnd-5e? 

Important to mention something that Medix2 noticed: **the original question does not include the full name of the book** (Explorer's Guide to Wildemount). It only says "Wildemount". 

Related:
- https://rpg.meta.stackexchange.com/q/8849/43856 
- https://rpg.meta.stackexchange.com/q/9566/43856
- https://rpg.meta.stackexchange.com/q/9976/43856
- https://rpg.meta.stackexchange.com/q/6867/43856

And many more.