I started using the BB Black when it was first introduced and am quite surprised it didn't become more popular. At the time, the alternative was the RPi, and the BBB was way faster and had dedicated Ethernet (something the RPi still doesn't have -- its Ethernet controller hangs off the USB bus).

To answer the question though, honestly I'm not sure how you can go wrong with it being a smaller community. You can largely take advice about the RPi and apply it to the BBB (or the PB, in this case). The hardware and software is all roughly similar, after all.