I would find it incredibly strange if reddit is never able to make money. I don't think they are really trying at the moment.

Reddit is an incredibly valuable service. Maybe a lot of people on Hacker News don't see this, but reddit has basically become the Geocities of online discussion communities. The subreddit system has eliminated the "eternal september" problem, since all non-casual users will trickle into the communities that match their interests. Even if reddit loses 90% of its users, it will still be a highly relevant online community. I am certain that they can turn a (modest) profit if they really try.

Reddit will probably never become a massive money machine. But regardless, it is a very influential community. Even community is arguably an understatement at this point, it is really closer to infrastructure. As I have said here before, I would be willing to bet that it is still around in 10 years, with a significant (millions) amount of users.