The sites that think they need huge numbers of small network interactions are probably collecting too much detailed data about user interaction. Like capturing

The sites that think they need huge numbers of small network interactions are probably collecting too much detailed data about user interaction. Like capturing cursor movement. That might be worth doing for 1% of users to find hot spots, but capturing it for all of them is wasteful. A lot of analytic data is like that. If you captured it for 1% of users you'd find out what you needed to know at 1% of the cost.