A lot of Spurs fans like Dirk and wanted to see him ring. I can't speak for anyone else, but I didn't bandwagon the Mavs against the Heat (who I actually like) because I have some intense hatred for them. I wanted to see Dirk win a championship. Simple as that. I bandwagon against the Lakers, and the Lakers only, because they are the Spurs greatest historical rival, not to mention their collective fanbase is about 30 times as re ed and Mexican as the "GNSFs" you so love to hate, so there's a reason for it. Much like the Lakers will always root against the Celtics no matter what.
On that note, I can understand why Mavs fans would bandwagon OKC, since the Spurs are the Mavs' biggest rival, but the difference tonight is that Lakers fans are acting pants on head re ed now that it looks like Duncan won't tie their precious Kobe, acting as if their team was the one that denied the Spurs a chance at the le.
Lakers fans cuckolding OKC in this series just seems like petty spite for all the we gave them back in the day when it was Duncan: 4, Kobe: 3, and the we continue to give them when the Lakers lose.