He essentially seems to believe that he was an amazing (like, top ten) Imagineer, even though most of the stuff he worked on was less than great. He wants to have what Morris and Sotto have, where they post actually cool stuff from amazing things they worked on. Unfortunately, the stuff he worked on was not cool, and most of his behind the scenes photos are of the creation of giant cartoony props. So he is often steals images by people who are not Jim Shull, and add his “insights” which are usually just obvious things. “This logo is different”. “If this ride is built in Florida guests should expect to see construction”. “If these leaves are not properly secured, they could be blown all the way to downtown Orlando in a storm.”
Thus the theory that he’s trolling (I don’t think he is).
Additionally, he’s very critical of everything that Disney builds that he did not work on. The criticisms are pretty obvious too, though.