I'd also like to apologize to Sean and the team for not trying harder to contact them personally. For example, there is an email address and other contact info listed for Sean on the FeeFighter's About page (I had been looking at the Samurai About page):
I believe that Sean and his team are making a good-faith effort to integrate FeeFighters with GroupOn. I've suggested to him that bringing back the three advertised support channels could be a good next step to maintain trust (the toll-free number, the Campfire chatroom, and the ZenDesk).
I freely admit that I've tried to "make lemonade" from what otherwise was a bad situation for Gittip, by publishing this piece and submitting it to Hacker News. I appreciate Sean for calling me and working through the issue together at a personal level. I have no hard feelings towards him and his team, and I wish them all the best as they try to tame the complexity of a significant acquisition, for which, in the end, they are to be congratulated.