Crash One,glider pilots try to avoid power traffic flying straight line - they're more predictable and avoidable. Modern gliders tend be harder to spot flying head on.
That is a more intelligent comment than "power pilots don't look out".
I flew gliders for a time, had a share in a K6E, As such I am well aware of the stealth characteristics of the average glider. Also, most single engine spam cans & bug smashers like my Emeraude have far less field of view than a glider. I just get pissed off by glider pilots assuming that power pilots are blundering on blindly, head down.
Having said that, It didn't help much a couple of years ago as I was about to connect the cable to the CFI & looked up to see a C172 at <1000ft heading straight up the winch line.