Well, that's not why it's a joke to me.
I pretty much cared about Rank until last season when they brought Kings Canyon back after the split. I refues to play that map seriously because it isn't worth taking seriously. So, now, I pretty much just use all ranked play as regular play, for doing achievements and stuff. It's Worlds Edge but they already ruined the season with KC on the first half.
Right now, in fact, I'm afk from a match I happen to be dead in. I told the team, and that's about how awesomely serious I take ranked now.
Once upon a time I did take ranked seriously. I mean, they have a good system. But if they're going to recycle maps which encourage you not to play as a team, like whatever version of KC there is, then I can't. And ranked is just better for achievements than their normal game mode :P