Thanks for the kind words, Jim!
Back when Comm Ave was all tore up and disgusting (not too long ago), I would take Brookline back roads part of the way to work when I was doing my "short" commute. I just sort of stopped once Comm Ave got repaved, and I'm not sure why.
And just as a little update, yesterday evening I passed through the intersection in the photo at around 5:45 or 6:00 PM, and there were hardly any cyclists. There weren't as many cars either. I'm chalking it up to people wanting to get an earlier start on the weekend on a Friday afternoon.