I was able to get some of the info he discussed by my own means. Nothing specially specific, but reading his thread it was clear that he is indeed one of "them". Not only he was able to explain certain difficult aspects of the science that only people involved with ETI would know, but he also has the clear traces of personality of a disciplined person who would actually be working for them. My guess being that somebody at his job asked him to do this, otherwise he wouldn't have.
One of the most striking answers he gives that makes it clear that he is one of the MIB, or man with black hats, or "them", is that he clearly understand the fact that the world is not controlled by a cabal of sorts, and clearly dismisses the idea that this would even be possible given the enormous amount of powerful factions and different goals.
I question his intention as to say that the ET only made a deal with the US, seems like some kind of misleading info, but it could be the case. There is information that France also has a treaty. But it could be very well the NATO or UN. Saying the US is the only country with a treaty can very well mean that he was using a VPN and do not work for the US at all.
Other then that, most of his information seem like what other people involved had told before. I also doubt his view that only one race visited the world, but maybe he means the US. As I have had contact in Spain.
The OP from that thread also had a very interesting point of view that I also share and many others like me. The earth do not have a destiny or prophecy that will simply unfold, its a ongoing plan and a day to day situation where even predictions of the future change and merge (can't explain like he does because I didn't sleep). His views on breakaway civilization seems to be very on point and his technological expose is on point too.