Well, I'm sure you two had your own points, but I had another. ^_^ But I realise that I just failed to make it really.
being as how I'm always struggling to get better and better, I draw. Alot. ^_^ Compairing my work from three years ago, I see so much impovment on my part, it's unreal. I've even practiced different techniques and such as I grew. The fact that I had a skill base, even as poor in quality as it was, allowed me to practice and experiment.
If you never draw, and you try new things, you may fail in the experiment (that may have worked), AND failed in your attempt to create what you wanted. Having a skill base lets you grow and try new things. You learn and adapt, and change your style to accomidate what works, and eventually lose what doesn't.
I wanna put it in video game terms, cause it seems like such a keen analagy.

Lets see if my brain can cook it up correctly. I'm going to make some AO items up to do it.
[game jazz] Ok, You're an AO character. You want to use a Cloaking Device. It takes a 70 skill in Stealth, or whatever it's called. You also have an advanced hybrid Cloaking device that lets you do snazy things, like jump higher, or shoot your gun better. It requires a Higher skill, and some skill in other fields.
to even atempt to use the hybrid cloaker, you need to be first proficiant at using the basics. THEN you can expand onto whatever else you can.
[end jazz]
So start with the basics. Even if your people are disjointed or misproportioned, you can still learn so much from just working with it. Or even incorperate it, or over time you'll find a method that works for you to proportion limbs and such.
I just recently watched the Animatix. There was a short with a runner guy, and limbs were VERY exagerated from what could be considered realistic even for anime. That style is so special and so unique that it'll be reconised right away.
That is if you have the patience for that. If not, then I'll just shut it right now. ^_^;