I know that he's one of the known Bitcoin Core devs and I know that he's on other projects too and since his PGP key has to be considered compromised, people should be very careful.
About what's his role on this forum... this is his account, I don't know if he's mod on the forum.

And while OP may be wrong on the mod part, the rest is quite concerning (for both sloppiness and the actual fact he got hacked).