PowerLine has an obscene amount of ads and upwards of 50 trackers. Web site operators always claim trackers ‘help them understand audience and data trends’ but they are invasive, annoying and slow down page loads.
I would think the visitors to Power Line would be quite obvious, although they do draw their fair share of self-regarding trolls.
Adblock and Ghostery (tracker blocker) are, as always, a must for sites who cannot and will not police themselves.
PS - any site doing business with Taboola and Outbrain - purveyors of the bizarre, salacious and flat-out disgusting - deserves to be adblocked with malice.