We actually see an extremely tiny loss in ad display through blocking software when comparing our site analytics to our advertising analytics.
You might actually be the only one going out of your way to block ads on CU. I hope it gives you warm fuzzies. Thanks for the support.
Its not "going out of the way" it's "click here to install this extension" and it runs for years without effort.
CU is not as much of a problem (I've seen the ads on my Dad's computer) but a lot of sites are just about IMPOSSIBLE to read with the ads in place. I can't concentrate on reading something with moving crap all over the screen. Newspaper websites seem to be the most egregious. That's why I chose, years ago, to block the damned things.