The Program Committee itself is full of the kind of thoughtful people who would never pick such a deeply unfortunate name: http://ws-rest.org/PC
If only one could say the same for the organizers: http://ws-rest.org/Organizers -- when I first heard the name I assumed it was an intentional troll, but their interests imply naïveté.
As one of the organisers, I can say the abbreviated name was chosen as a bit of an inside joke ('in' being the REST community). We certainly did not mean to offend anyone nor do I think there is any reason for anyone to be offended, but I guess others may see this differently.
If only one could say the same for the organizers: http://ws-rest.org/Organizers -- when I first heard the name I assumed it was an intentional troll, but their interests imply naïveté.