Until it was brought up, I had no idea of his age. But then, age means so little today. I know 18 year olds who are totally clueless, and 12 year olds who've got a solid grip on reality.
Then there's the problem of how old someone is, against how old they say they are. I'm certainly not gonna lose any sleep trying to analyse someone's posting technique to see if they're really who and what they say they are. S4 admits he posts as Bubba. Does he post any different from one persona to the other? I know that any time I've made a second user, it's been to post as a different person. The odds of anyone spotting that it's the same person at the keyboard are miniscule, because while I'm posting as that second person, I'm not Professur. I don't think, react, or even type the same way. I don't even have the same accent. Anyone fleuently bilingual does the same. To be fleuent, you have to think in the second language. Posting as a second user is just an extension of the same talent.
Hence, I treat every user as an individual until they tell me they're the same person. I also treat every individual as is they're lying to me with every post. I also treat every individual as is they really believe they're telling me the truth.