Basically every website I've ever built has a T&C, and every time we have the discussion with the client about them, it goes like this.
"We need some content for your terms and conditions page"
"ok, umm... what do you think?"
"well, we have a boilerplate T&C we use that covers most bases..."
"OH! well just put that in there!"
I've only ever had ONE company deliver an actual real true to life T&C they wrote themselves, and even *IT* was a cut and paste off of an earlier site they had that we didn't build.
All in all, I'd say that most companies really couldn't give the slightest shit about T&Cs, and it really surprises me the amount of debate that goes on about them around here. Surely people just ignore them and do whatever they want anyway? And as for "we will not sell your details", well, isn't it just easier to assume they will and use mailinator / easily filterable addressses?