On Thursday, May 31, 2018 at 4:50:33 PM UTC-5, Dave Nadler wrote:
(…)

No, PowerFLARM and FLARM address glider-glider conflicts which cannot be
addressed with ADS-B technology.


Dave, this has been discussed here recently, and what we have heard from Darryl was that ADS-B technology would actually do it better than FLARM because of a stronger and more frequent signal. The big hurdle is the amount of time and effort to write the necessary code for a relatively small glider community.