But certainly scapper blockers also have a big disadvantage, which is that the number of (reliable) scrapper detection techniques is finite, and probably pretty

But certainly scapper blockers also have a big disadvantage, which is that the number of (reliable) scrapper detection techniques is finite, and probably pretty small. It's relatively possible (though no easy task) to find most of them by going through the Chromium source and looking at what is done differently when running in headless mode. And you can also probably find more by occasionally running some more real browser and doing differential execution of the JavaScript code. And once all trivial detection techniques can by bypassed, it becomes exponentially more difficult for scrapper blockers to find a new one.