I'm just throwing a shot in the dark, however it is probably because a lot of his posts look exactly the same. They're also very frequent, I grabbed all but two of those from the first page of his recent posts.
These posts are obviously copy-pasted, which is unacceptable. Especially so when you're wearing a signature and being paid for it.

Not running, but spam checking for their signature campaign. Pretty ironic if I say so myself.