You say RIS is useless to ME what about the other poor bugger coming your way at 200kts in IMC? It might be very useful to both of you! Why is it always about the glider? "I don't want to fit a transponder", "I don't have the power for a transponder","Why should I do an RT exam", "An RIS is of no use to me"...etc....
Ok, so what do YOU suggest we do? Carry on as we are ignoring the facts? Fit FLARM? Fit transponders? Ban gliders from IMC? What?
Secondly, RT licences don't come free, we all have to pass the exam. you could do it in half a day if you chose. In fact you could probably rock up at the local flying club and sit the exam, walk straight into the examiner and do the practical. All you would need to do is read the book first.