It's a risk any time I speak to you, because a large part of my life is HN, and speaking to you risks another penalty. I didn't mean it as an accusation, it just seems to be the mechanics of me-speaking-to-you.
I also apologize for quoting a sentence that you cut. That happened to me earlier, and it's always frustrating, even if it was unintentional.
My point was, your comment seems to be mistaken in a revealing way. If it were true that YC was biased, then your editorial decisions wouldn't be able to influence anything in relation to the bias. The bias would already have an impact on the startup pool that you can select from.
In other words, your decisions about HN's "Meet the Batch" threads seem unrelated to the question of YC's alleged age discrimination. But you felt that your decisions were related, since you were saying "We don't select for age" in regards to the Meet The Batch threads.
Bias is something that you can't force someone to care about. I'm hoping that it may be a lightbulb moment for you, as it once was for me. It's never any fun to be a part of an organization accused of some form of bias, but asking yourself "Could it be true?" is a mental exercise that personally I found helpful.
That said, you were correct that this commenter posted those startups without knowing the ages of the founders. It could be possible that those startups have older founders. But no one seems to be quite sure. It's lame of them to make an insinuation like that without knowing the ages of the founders – burden of proof – but it's also worth considering whether it's true, even if it was a lame accusation.
Anyway. I didn't say any of this to put you on the defensive. That'd be the opposite way to change your mind. Just think it over a moment, is all I ask.
EDIT: After re-reading this chain, perhaps I'm off the mark here (a common theme). From my perspective, it sounded like someone was saying "Well, it might be true; these startups do seem pretty young and trendy..." and then you were listing reasons why that was mistaken.
It sounded like you didn't necessarily care about whether YC is age discriminatory. My goal here was to convince you it may be worth caring about it.
If you already do care about that, then never mind. My mistake. I see now that your point about editorial decisions was an expansion of a different train of thought.
One last point to give a moment of pause: If you list N random politicians, most of them will probably be pretty old, because politics is biased against youth. If you list N random YC companies, will the ages of their founders tend to skew younger or older (relative to the proportion of those age groups that apply)? That might be one way to investigate the claim.