FWIW, I see a lot of similarities between politics and sports, so the fit is pretty good.
For starters, they're both something like a long soap opera, with day to day events that tell a story over a long period of time. They both have seasons - election years every other year and presidential elections every 4th would be the seasons of politics.
There is a running scoreboard in politics, as well. The polls, election results, and the vote tally on legislation are the scores.
Both have winners and losers. Both have strategy.
Politicians and athletes have their foibles. It's big news when Bill Clinton or Tiger Woods gets busted with their indiscretions.
I hope S2 is more than just a message board. Judging by how people hang here for hours on end, it's more of a community and the site and software simply enables people to converse. I happen to like the people in this community and enjoy the discourse with people who have similar interests. If the site facilitates people to share an interest in politics or restaurants or beer, all the better.
I also happen to enjoy reading the links or articles others post. I'm sure other (than myself) people read them as well.
Finally, this isn't a basketball site, it's a sports site. If you care to stick around and post about baseball during the basketball season, awesome. If you want to hang with the people you've come to know through this site and talk about other things after our favorite teams get bounced from the playoffs, I see it as a good thing.