I don't know...in fairness, there are no other bikes around, and it appears to be later than normal commuter traffic hours. There's room for 3 more bikes - one on the other side, 1 at either end, and even a 4th if someone wanted to entomb this faux-Specialized in the middle (and teach them a lesson about bike rack demand). It's more likely they know the area better than we can discern from the photo. Once the sun sets, the rules definitely change. Theft and vandalism risks usually escalate dramatically. Parking along a drunk pedestrian lane opens up more complex social vandalism possibilities. College towns often have groups of erratic young impaired malcontents transiting by, which adds a few more risk points. It just takes one frat jerk to whack the rim to pop the spokes, and untrue your wheel so it no longer rotates. Then you're carrying your ride all the way home. Maybe this rider is a genius?