Actually,
After reading the other thread, I think it would be best for DG to
abandon the airworthiness certificate for the older gliders and let
owners fend for themselves, as PIK and owners of other older glider
types already do. EASA has a procedure for these aircraft, they won't
be grounded.

This way DG could save themselves all of the expenses. Problem
solved!

Portraying this issue of support in a light that without DG support
the gliders would be grounded I think is misleading. But that's just
me and I could be wrong.