It's unclear from the post whether or not it's anonymous. I'd be more comfortable asking (and answering!) if I knew it was anon. Otherwise, it might be awkward, especially at a smaller company.
Why wouldn't someone be empathetic towards smokers? They got hooked on an addictive substance at some point in their life and are now stuck with an unhealthy compulsion.
The images look reasonable to me, and I'm a female software engineer. Sure, she's wearing an interesting top (it could be a dress, but could also just be a nice blouse), but it's nothing beyond what I might wear to work. She's wearing the tiniest bit of makeup, very discreet and professional. And her facial expression is fairly neutral -- there's nothing especially sexy in it. Banning the account seems uncalled for.
<shameless_plug>
I actually just built an iPhone app to help people get rid of stuff they don't need called Give or Take: https://itunes.apple.com/us/app/give-or-take-bay-area/id6517....
Everything on it is free, so you won't make any money off it. But sometimes giving stuff away can be faster and less stressful.
</shameless_plug>
As a former undergrad at Caltech, I actually think BBT is pretty great. (I'm only about 1.5 seasons in though, so it's possible it drops in quality later). It's definitely more extreme than reality for comedic effect, but it does actually remind me of my college years.