Q stated that a team exists. And in addition to the fact that different types of posts exist, there have been a few subtle changes in tone, as if the writer were a different person. Obviously subjective, but many others have made that observation.

It would require a tripcode to be shared, and I imagine it would be controlled by a small communications team within a psyop unit. Given that it's a military operation, it is only sensible to assume that redundancy exists in every position including the writer(s).