I know you shouldn't take as gospel the things you find on Wikipedia, however take a look at the entry for Boundary Park. Apparently we're tenants from 2015 onwards:
then look at Oldham Roughyeds entry, SportsDirect.com Park is our home ground:
lastly look at the entry for the RL Championships (Venues):
again, SportsDirect.com Park
So is somebody jumping the gun and just basing those entries on rumours, or is the truth out there. (Cue dramatic music).
I wouldn't get to carried away.
In wiki you can see who has edited.
In the case of the new stadium in the Roughyeds page it is the user with the IP address 18.104.22.168 and here is his history, he updates all the transfers for Rugby LEague, plus some Scottish stuff. Just someone who is using another source and copying, definately not in the know. So your initial hunch about not trusting wiki was correct.
WIth regard to Boundary Park wiki page it was changed by Northern Wonder. His profile is here. Given the depth, I suspect it is the same person and he has no more input than anyone else.
I've challenged it anyway!