I hate the fat Carrie seasons
I dunno what it is, Leah just doesn't seem as funny after shes had a baby and gained a ton of weight, plus the main perk of watching the show besides the good writing was looking at Leah's great body, once that was gone the show went downhill imo.
And it was always weird when they'd have a flashback episode of Doug and Carrie younger before they was married or just after they was married and Leah was fat and old. Probably shouldn't' do flashback scenes when the actor is much older and bigger than they was around that time of the flashback scene.