Being upset that someone is moderated is understandable, but do you have the whole story? Was the TOA crossed?
No, he doesn't, which is why the poster ASKED why, very respectfully. As usual, there are no answers forthcoming. If it's a TOS violation, he should be told so, preferably with a warning, so he can make sure to "knock it off" and not do that again.
Otherwise, we're ALL just speculating.
When (often good, reasonable) reasons aren't given; people assume the worst.