It's kind of weird. The character drops in- and out-of-universe when its necessary to the plot, talking about "all this stuff I've been doing" when unicorns and ziggurat dungeons randomly appear, but namedropping "IndustrialCraft" and "Equivalent Exchange" when not paying attention. It gets better as the LP goes on, but right now there's not much there in terms of personality (I mean as a well-formed character and narrator in their own right). That's the main reason I asked whether it was a self-insert or an original character (OC for short), although reason number 2 was "I don't know whether I should refer to him as 'him' or 'you'".