That's a totally different game. Of course I have individual airline accounts, and of course I accumulate those points. Hell, half the time the points and website account are the same thing now.

But that's peanuts and will never add up to much because I only fly a few times a year and it's usually on different airlines. The real miles game is accumulating points from other purchases, and churning those into free travel and such. Both generating and redeeming points in those volumes is a lot of work -- I've done it and eventually decided it wasn't worth my time.