I hate to bring new life to this old thread, but no, you should absolutely not trust anything WDW Pro or his website puts out.
For one, real, trustworthy journalists do not hide behind pseudonyms. It's just one way he's trying to avoid accountability for when he's wrong. His self-evaluations where he declares he was 90% right about reporting over the past year are absolute nonsense. That's not what actual journalists do.
He uses almost exclusively anonymous, vague sourcing when he reports anything original. Again, not responsible journalism.
And he has a clear agenda that he's trying to push. That colors everything he publishes. If you want that perspective, fine. But it also means he's not above making up sources to push that agenda and engaging in ragebait.
The theme park community's standards for news and information are terrible, and WDW Pro is probably the worst of the bunch.