I can't stand people that routinely mute ads because that in itself is an interruption. Even worse is a friend of mine that shouts violently for the ads to fuck off every time he mutes them.

The problem for me is that with muted ads, you have to visually monitor the TV to find out when to unmute. I find it much easier to just use my mental ad-filter, though I'll happily grant an exception if the station is doing the stupid loud-volume ad trick.