Too bad Malda sold it before the social media valuations like of Facebook.
Slashdot had some commercial awareness (e.g., there was a lot of predictable "take my money!" meme about products), but wasn't thinking along the most profitable lines, and maybe never could've. (I've been wondering how much/often dotcom founders of successful startups reshape the world in their image, and I doubt that Malda saw the world with a Zuckerberg eye, for example.)
Another big property that was bought by the same people was SourceForge. Which didn't fetch anywhere near the price of GitHub.