I am one of those.

It generally goes like this:

When we launch a site it is seldom more than perhaps Hotjar, Google Analytics, and two-three other services connected.

And then through the years product managers and other stakeholders gets sold on adding LinkedIn, Instagram, Meta, and so on. So we add those.

Next a specific service ”to better track the sales funnel from in-store salespeople to the web” gets added. Then another ”analyse the data quality versus bounce rate” tracker gets added. And so on.

Before long the developers have streamlined the process of adding new scripts/analytics/trackers that editors can add them on their own, and that is when the floodgates open.