I read all the parts that apply to me, but this is a quick read to try and hunt down the importance of it. But I will never give up reading a TOS when signing up a new service.
Does anybody really have anytime to read them? I guess the most reading I do is to look for any "special" terms they have... in most cases common sense is enough to stop you from violating the TOS.
I basically just skim them to see if there is anything I would need to know. Most of them are pretty generic.