Meta: there's a delay between when a comment is posted, and when the reply link becomes active. That delay is larger for deeper comment threads. I've never heard an official explanation, but one can imagine a few reasonable ones, e.g. to encourage people to stop and think in heated back-and-forth exchanges.

I too live in the Seattle area, and I've heard of this technique. Sadly, when implementing it, all you see is the angry drivers behind you who rush to pass and gobble up the traffic bubble you've been saving.

I thought that this was covered by the Traffic Waves guy who said his method deals with that problem quite well?

Yep: it doesn't happen, FAQ: http://trafficwaves.org/tfaq.html#five

- if truckers can maintain a bubble, how can it be impossible?

- yes, aggressively weaving drivers sometimes jump in ...then they jump out again.

- at merge zones, the entire point is to let people into your lane.

- In theory, everyone else wants your precious bubble. In practice, not.

...and in a burning building, we all know the best way to escape, eh? EVERYONE AGGRESSIVELY PUSH FORWARD, DON'T LET ANYONE ELSE GET PAST, COOPERATION AND TEAMWORK ARE FOR LOSERS! Yep, that certainly won't trigger a huge clogged mess where everyone dies.

That's the one. Thanks!