ChrisN
As I have posted before, power pilots who get excited about the collision risk with gliders are focussing on the least of our and their collision problems.
Some perhqps, but not me.
Many people chase storms and many people hand feed sharks. Few are killed or even injured.
All, again IMHO, are very low probability:high severity risks, so it is unlikley to happen, but if it does..........
Just because it has never happened does not mean it will not (or that it will in the near future.)
Anyway, glider pilots can legally cloud fly, so thats the end of the debate for me.