If I have to start using the ignore feature here, I am probably on my way out. So I am in agreement with Denver on that a high norm of civility should be maintained here. I have argued my own point of view assertively a couple of times here but have tried to avoid direct insult (a la road forum) or, just as important, implied insult.

The latter is the thing we need to be very careful about, IMO. No matter how superior one's reasoning power, experience, or knowledge of cycling may be there is a time to state your point and then just move on.