For the record, while I could always get behind a solid Jojo's Bizarre Adventures stylistic parody, I think that inherently the idea of it being a self-insert about taking over a forum you're a regular member in– even in jest --would under most circumstances make it inherently bad and I would say it's a massive wank-off.
So consider it a compliment that I think you can not only get away with it, but make funny too, by way of just being a respectable guy who probably knows what he's doing. I must re-iterate that, from the criticism angle, it's a delicate subject that can remain in parodic quality, but could also fall apart and become awkward. So treat it right and it won't look messy. It's walking a tightrope, but hey, you can do it. It'll be good practice.
And another important for the record:
! Comic depictions of me tend to just draw me the way I look in real life, example.
! But when people deviate from this it usually is pretty cool too, taboo's rocked. Either way is cool. JUST SO U NO.
! The best part of e-comics is just wanking over your self-depictions after all and since you're OBVIOUSLY gonna draw me…
! >! I'm kidding.
! But something to actually take into consideration is that robotnik is the true founder of NPC.