Strongly doubt this is ole' Skeet. But, in the interest of knowledge, Pendergrass was personally rehired to the UTAD by Hitman Dave Hart in 2010. I don't know when he started posting, but it would have been about that time if he was indeed Skeeter. Also consider that we have more than one AD insider here. I think it's even less likely that Pendergrass was DP12 (he's not in AD administration, IMO), but you never know.
That being said, I get the feeling Jones wouldn't be all hot to trot about firing a two-time Tennessee alum who's spent most of his career with the school for a few lousy message board posts when Hubbs has most of the same exact info a day or two later.