I'm the co-creator that Dan was talking about. He wrote a bunch of less-than-charitable comments on the aforementioned semi-private forum – not specifically to me, but where he surely knew I would read them – to which I responded with:
https://gist.github.com/StefanKarpinski/c72219ff8ce261172b11
You can judge for yourself whether I was nasty or dishonest. Things were, unfortunately, not patched up. Dan posted a number of responses, deleted all of them before I could read them, then left the conversation permanently.