Thread:Falanthil/@comment-27645494-20160817141206/@comment-29530076-20160817144947

Placing categories on docs pages allows templates to be protected where necessary, while allowing anyone to edit the documentation and categories. It's a typical approach used also by wikia and a recommended way of documenting. Also keeping all in one place make it easier for maintaining and controlling. In terms of interwikis it's just a general widely used message, just in case. Simple comment, shouldn't bother anyone.