This is kind of another Thatcher thread (sorry) but was something I was thinking about before she died too.
I find myself getting immensely irritated at FB posts which are not aligned with my own way of thinking. Today, I have deleted a FB friend (just an acquaintance in RL, so no biggie) because they've made more than one pro-Thatcher post now, and that's one too many for me. They didn't say anything overly offensive - I just realised that we're political opposites.
I have little tolerance for anybody who posts anything overtly right-wing (usually to do with immigration) and in the past have swiftly deleted anybody guilty. They are always acquaintances - my family and close friends would never post anything I disagree with.
So, AIBU to be so quick to delete? Do others do the same, or do you just ignore it? Hide their posts? Challenge them?