When I ride, and there are clear, mostly clean, bike lanes along the road, I tend to stay in them.
Several of the roads in this area have full 12' bike lanes (as wide as the traffic lanes), and while there are occasionally vehicles parked in them, it's uncommon.
I was driving (hauling stuff to my new house) down
this road yesterday, and there was a group of 5 riders. Of the 5, 2 were riding almost right on the fog line, and the other 3 were out in the traffic lane.
Why would someone do this, other than to be a jerk? Is there some point they think they're making? If they were moving back over (and there is plenty of room to do so) when traffic came up behind them, I could at least chalk their behavior up to maybe trying to make sure they're seen, but they didn't even do that.
As a cyclist, I find this even more annoying, because I know a lot of drivers paint us all with the same brush.