Theory T (real name Wadsworth Jerry Nelsen) was a user from YouTube and GoAnimate.
While he makes grounded videos out of Slippy V, Baxter, Blue91233, Louielouie95, Cam S, Coulden Pettit and other good users, he claims Warren haters and Memy haters are bad users while he, along with Warren Cook, Memy and their fans are good users. He also often to post death threats to "bad users".
He joined YouTube on about 2010. In 2013, he joined GoAnimate and soon became a Warren fan and Memy fan. He also became a so-called "Coulden Hater" afterwards. Due to his immature behavior, his YouTube account was terminated on Febuary 2014, and came back as Puf Nelsen in mid-March 2014.
Theory T's GoAnimate account was suspended on May 5th, 2014, which ended on about May or June 2014.
His birthday remains unknown, while he claims to be 11 on his YouTube account, he is around 15 or 16.
- When he received someone making videos out him, he made videos back to them.
- Unlike other Warren fans, Theory T liked Warren Cook for a different reason other than his fake VHS openings. The reasons are his GoAnimate avatar, his name and his "silly" accounts.
- He claimed Warren Cook, Memy9909, Bobby Poppyguy, BatteryMill, Grandchase RealCook & Lothos GrandChase as good users. He also claimed to be a good user as well, due to his "intelligence".
- He shared his GoAnimate account to his brother.
- According to Blue91233's "Theory T gets Grounded" series, Theory T doesn't know literacy and maths.