I took it as satire on the whole 'Reddit got bought by a giant megaconglomerate yet still had to beg their userbase for money to keep going, and their site is still slow as a dog' fiasco.
Then again, about two days ago the Inbox stopped taking 2+ minutes to load, so...
I'd hate to thinking that our dialog has downgraded to memes and TV show references. Regardless of appropriateness, it doesn't add information or opinion, it's just noise.
[edit] Info from comments demonstrates these results, though simplified, to be incredibly optimistic. Assuming a CPM of $1.00 and taking into account the ratio of paid advertisement to Reddit advertisement, the Monthly Revenue number would dip significantly to $100,000.
It seems that CPMs are more in the $0.50-1.00 range[1]. Which still translates into a very nice chunk of change and that's not counting other initiatives such as reddit gold.
I have no idea but judging from the amount of real ads I see on Reddit, I'd guess they make way more money from Gold than from display ads at the moment.
Keep in mind 90% of the ads right now are just games or reddit ads (keep refreshing the page). Not mention a good percentage of their users use adblock and are extemely anti-commercial. I think they are making significantly, significantly less.