He's not a moderator, AranSIRE. The description of General Forum also includes: "Anything your heart desires." If the moderators don't approve, they'll let you know.
I, for one, am currently involved in a Descent into Avernus campaign, so I'd be a terrible player for your campaign. I know all the details.

So far, my players are enjoying it and joking a lot about going to hell, hell in a hand basket, etc. I do recommend it for anyone wanting to play BG3 who hasn't already. Play Descent first and then BG3 and many things will make more sense.
Or, if you've played BG3, it's good to play Descent just so you get sort of a better understanding of why Larian has done some of the things they have done.