Is it time to start calling out bad cyclists?

One way roads are something that frustrate me. They are really only a way of getting cars and trucks around a road network that really wasn't designed for them.

They're not. In most cases of residential streets, they were always designed for two carriages to pass. Most high streets are wide enough for three carriages (except Mare Street Narroway). The main reason for the continuing existence of one-way streets is kerbside car parking--stationary cars. As for one-way systems/gyratories, they have well and truly had their day. While car parking has in the past been removed from most of them (as part of conversion to Red Route no-stopping controls), in London they are now virtually all signalised, which generally removes any motor traffic capacity advantages they may once have had.

Lack of permeability is a serious problem for the development of cycling.

http://hackney.cc/permproj.htm