The most mercurial quarterback in the NFL is at it again.

Cam Newton has apparently scrubbed his wildly popular personal Instagram account, which has over 4 million followers, of all its posts and unfollowed pretty much everyone except his businesses, including anything Panthers-related.

Here’s what Newton’s page looks like right now.

What does it mean?

Nobody really knows but Newton, of course.

We can assume Newton is frustrated over his team’s wild-card playoff loss to the division-rival Saints, Carolina’s third defeat at New Orleans’ hands this year.

Newton put in a gutsy performance but ultimately didn’t get enough help from his teammates to pull out a win. It’s possible Newton is also unhappy with the pending sale of the team. He has made it known publicly that he supports owner Jerry Richardson and wishes he would not sell. Perhaps he’s upset about the recent hiring of Norv Turner as the offensive coordinator.

Maybe it’s not nefarious at all. Newton could be launching his own social business that would compete with Instagram. It’s possible he’s going incognito for the offseason to avoid distractions.

Whatever the case, Newton is an emotional guy. It’s unlikely this is a signal of a serious rift within the organization. If it is, we will find out eventually.

It’s also worth noting that Newton hasn’t totally shut down on social media. Saturday he posted on Twitter about his diversity initiative called “United As One.”

We’ll post an update if and when Newton posts again.