wqwh

Until the day 100% of browsers support 100% of features with 100% correct implementations, or we have only one browser, it will keep working like this.

By the time they publish a correction it's late; they've already made money.

Then they'll benefit for a few years. Having low prices for 3 years is better than having low prices for 0 years.

It should not be a FIFO. They probably want diversity of countries, ISPs, devices, etc. According to your profile you're located in China so they're surely not short of Chinese test subjects for a VPN ;)

In Spain you're forced to attend if they call you (supposedly they choose people at random), but they pay well.

When you write Python you already know you're throwing the performance out of the window. In fact based on my experience those numbers are pretty good.