I'm 95% sure that he's a SB employee. If that seems far fetched, consider how few forums remain since reddit centralized so many discussions...
Site like mma.com, bodybuilding.com, and paintball.com are some of the few surviving mixed topic forums out there. It make sense to dedicate a few "Stalwarts" to these sites. Reddit self regulates. There are a lot of SB losers on there, but their role is to keep to the momentum going.
The left knows open discussions are extremely dangerous since the narrative they're pushing is full of lies.