We can't always control what we are exposed to. It may be on the TV at some venue (e.g. a pub) where we have no control.
For example, there are times when I visit the people next door and I might be exposed to the Bold and the Beautiful. In that case, at least the standard is so poor as to create a few laughs. I would also prefer not to be exposed to hideous bellowing radio adverts and DJs who think they are more important than the music, but that's not always possible. Again using next door as an example, they sometimes have the radio up plenty loud enough to penetrate my shed (I get far more volume than they do in the front of the house), but for me to complain about it would seem somewhat hypocritical, given that I make plenty of shed noise.
Actually, it's not too different to people dropping comments into a thread about how pointless the thread is - they could choose not to read it, or choose not to respond if they think it is such a waste of time.