Articles in this category probably use an {{Elinks-...|subdomain=wod/old/ptr}} parameter in template.

Having parameter |subdomain=old is probably okay to have indefinitely, but |subdomain=ptr should only be added when PTR is available and linked thing is only on PTR. |subdomain=mop (during β) should be removed as Mists of Pandaria is now live. Parameters |subdomain=beta or |subdomain=wod can be used during α or β.