Github has been aware of the gripes for a long time. The "Dear GitHub" letter came after many months of trying to get GitHub to respond through other channels.

Github has been aware of the gripes for a long time. The "Dear GitHub" letter came after many months of trying to get GitHub to respond through other channels. The "6 months" timer doesn't reset every time you ask. If GitHub wanted to do something, it shouldn't have required the "Dear GitHub" letter, and once it got to that they should have responded promptly. That they haven't ever responded official (to my knowledge) is a sign that they have no interest in dealing with the issues.