[pythux]

This. It is exactly what happened about a year ago when this performance study[1] was published. In the months that followed, uBlock Origin, Brave and Adblock Plus all worked pretty hard on improving the performance of their content blocking engine, and used the benchmark and open-source dataset from the study to measure their optimizations.

The result is that now, all users of either of these extensions benefit from a better and faster product, thanks to emulation between competing projects. This would not necessarily happen in the absence of competition. In the end, users benefit.

(Disclaimer: I am one of the authors of the performance study)

[1]: https://whotracks.me/blog/adblockers_performance_study.html