I might be missing something but in class D airspace, if I am flying a B737 and some **** in a glider or microlite gets in my way I am in just as much danger as if the offending machine was a spam can. Why should gliders and micro-****es be exempt from having altitude reporting transponders in class D?
In reality these pilots will have had less formal trainning in many cases then a JAR PPL A and are therefore more likely to cause problems!
Oooh brave and taunting words.........