Unless I'm mistaken, Focus is specifically a tracking blocker, right? As in, it's only a content blocker insofar as the advertisers are collecting data about visitors in addition to selling their page views? I really don't see the problem, and it's hard to take sites like WaPo seriously when editorializing about users trying to circumvent their ethically dubious revenue streams. I get that the whole media is in a crunch right now to figure out what to do about online advertising, but whitewashing the privacy invasions isn't helping.