At 00:06 25 November 2005, Mark Newton wrote: (snip)
What would this thread have looked like if the BGA
had
released a position paper which said that collision
warning
devices were discouraged because pilots should be looking
out, and if they're not looking out the last thing
we want
to do is surprise them and distract them in the high-stress
environment they get when another glider is in the
final
moments of a collision course?

Funny you should say that because there is a school
of thought, not one I necessarily subscribe to, that
says exactly that.
As I understand the argument, in a busy thermal responding
to a collision alarm posed by one glider could cause
the pilot to fly into the path of another glider which
up until the point of the alarm did not cause a threat.