[kfor]

Exactly. Maybe it's because the top 20 stuck around in YC long enough to be badgered by Paul Graham into getting a .com?

That said, I don't disagree with him on .com, I just don't think this particular factoid adds anything to the argument.

[ricree]

And for at least some these, it's definitely come post-success.

Twitch.com redirects to twitch.tv, but was a music site as late as the end of 2014.