[itishappy]

I explicitly do not mean "poor," that's why I choose "unknown." A better word would have been "variable." The point I intend to convey is that you need to use other signals to judge.

That's also why "closed-source" was mentioned in the same sentence. Two missing signals.

That's also why the author keeps pointing to the benchmarks and test suite, which is the signal they'd like us to judge by. Seems entirely reasonable to me!