[zurn]

Seems like a possibly good business strategy for w3techs.

They publish numbers that are very surprising to most people, like Python and JS are used on 1.5% of sites vs PHP on 79%, then offer some very handwavy text about the data ("In order to obtain any information from websites, we rely on the websites themselves"), and then offer a full report for $$$ where they probably more fully own up to how they come up with this clearly flawed data.

In the end the paying customer sees the shortcomings of the data, feels relieved that their assumptions weren't invalidated and has invested some money to doing due diligence.