Tell HN: I want my karma points back

I was mercilessly downvoted for a joke that at least 9 people didn't get. Here's the post:

http://news.ycombinator.com/item?id=576077

Just to spell it out for the people who failed to get the allusion: it's the victory theme from Final Fantasy. It plays when you beat the bad guys. It's not an off-topic spam link. On the contrary, it's totally appropriate for a thread about falling real estate prices.

I don't usually care about getting downvoted, especially when I know that I deserve it, which is most of the time, but this rash of downvotes was just ridiculous and embarrassing to the site. I was downvoted to -8 for a quality post, then downvoted further when I explained the allusion.