I emailed the organizers of the Twin Lights ride re: guys blocking traffic and laughing about the mayhem they were causing. Saw it on multiple stretches as I drove home against the tide as they came through Kings Highway/Buttermilk Valley towards Highlands. They were basically blocking the traffic just to agitate people, on open wide and straight stretches ...not guarding blind corners.
People hate cyclists here...and this sort of thing is why unfortunately.