[ctbk]

Yes, you have a point, but apparently they're discarding that option.

From the article: "They've definitely had talks about how to monetize and start bringing in money, but if you thought they were about to start with advertising, you'd be wrong. Disqus will not always be a zero-revenue company, but Daniel says advertising's not in the plans."

[DenisM]

The information is still valuable. They could expose you to other applications which will interest you and in turn generate profit.