The problem is that the current add model has converged to a local optimum (or, better 'pessimum'). The race to the bottom has lead to extremely obtrusive, performance-destroying, privacy invading, cheap-for-the-advertiser ads (when not actual malware); additionally has lead to a proliferation of content farms on one side and to the watering down of actual content on what were originally proper sources; finally, the availability of free content, even if of low quality, has made it very hard to build a profitable for-pay model.

Actively boycotting the current status quo by making ads no longer viable can be a way to force the system to settle to a different optimum.