Hi, Fandom. A little background: My wiki (PPC Wiki) has recently had a string of new users posting off-topic articles and images, and new templates to go with them. We're handling it by deleting the off-topic content (as our wiki rules specify we may do) and advising these users to join our community forum to learn how to contribute appropriately, but so far none of them have responded. The bottom line is it's spam, and it's getting tiresome.
For that reason, I'd like to know if it's possible to limit page creation in the Template namespace to admin-only. This would reduce how much time-wasting spam is created without limiting the editing capacity of the average user on our wiki.
I've looked through the admin tools, but I haven't spotted a way to do this, if it's even possible. Advice on how to implement this or on any other strategies for handling this issue would be equally appreciated. Thanks!
ETA: Apparently we did edit-protect the entire Template category at some point, but that's not stopping people from creating pages with that namespace.