Not taken as a personal attack but I'd refer you back to
Please let me be clear that I am not suggesting that it is good airmanship that the gliders do not make use of facilities that are available to them (even though they are not required to do so). Rather I am suggesting that it is bad airmanship to go hooning about on the assumption that they should and will.
I note that you consider practicing what is, effectively, an emergency procedure an unsafe practice.
Where'd I say that?
Personally I prefer not to use words like "safe" or "unsafe". It's a matter of risk management. You cross the road where you have clear sight lines not because it is safe but because the risk is reduced in comparison to doing it where you don't. I put forward some suggestions that could reduce the risk of descending with a high RoD through cloud when radar cover is temporarily unavailable.