RunningFeet - reckon it's fine to chip in, that's what it's all about - had a read of your blog, and I think you're right, it's about healthy rather than skinny - as a 6' 2" 16st+ 39yr old starter at running, it was more of a last-chance health kick for me. People at work are now asking (after four months) if I've lost weight - I say "not really, but I'm much healthier and a bit thinner" - I've lost around half a stone, but I need a new belt, as my old one is just too big (OK, I could add a new hole to it too I suppose). Weight means nothing, as I'm fitter and thinner than I've been in years, despite my weight being above what it has been when I've dieted and been a lot less healthy.
Also, I think it's about getting out there and enjoying it - I run when the sun's coming up, I run in places I'd never just visit otherwise, I run when it's crazy windy at the coast, or when it's so cold you'd not think about walking without hundered of layers - I see stuff I would never otherwise see.
Keep it up - you're doing a grand job. 