I understand that - it's just very annoying to watch, and this is compounded by the video being a bit of a non-event. Yes, it's annoying, the riding upstream thing, and should certainly be discouraged, but not significantly more dangerous than a pedestrian walking in the same position. There's a spot on my way to work where it occurs frequently enough to be noticeable. There was a slightly xenophobic hoo-hah in the local press about pavement riding by foreign students, which ignored the fact that from a particular student/residential area to the university the (very wide) pavement in question was pretty much the only option for a timid rider not willing to cross a busy dual carriageway twice within the space of less than half a mile. Or indeed a rider who wasn't sure about where s/he was allowed to ride. I imagine that after the pavement-riding crackdown this kind of rider simply didn't know where s/he was supposed to be, and being close to the pavement but not on it seemed to be simply where they were expected to be. It's not, in my view, significantly more barmy that many local authority, media or public perceptions of the 'correct' place for cyclists to ride.