This is the part I don't understand > It increases time on site, My interpretation is that they increases time-on-site by pushing away people that aren't comm

This is the part I don't understand > It increases time on site, My interpretation is that they increases time-on-site by pushing away people that aren't committed enough to wade through bloatware... and I don't understand how that works in the long-run. Is it more profitable to push away customers so you get high-quality data on the core customers, and increasingly targeted advertising? How does that work out in the long-run when you need to replace lost customers?