Darryn, this is a support group. We should be encouraging and helping members to cope with AS...not tearing them down for their treatment options. Treating AS is a personal decision...and one size does not fit all.
Some people take the drug route and do very very well...esp on the biologics. Others try that route and it doesn't work out so well for them and they struggle with ongoing problems. The same applies with the NSD. Some try and do well, others give it a short half-hearted try and give up and still others give it a genuine try for a decent amount of time and still find it doesn't work for them.
I appreciate your enthusiasm for the diet and am so glad it is working for you as it is for my husband. For us it's been amazing. And I can certainly understand your desire to share your positive experience with others in the hope that they might try it and also find relief.
However, telling people to "harden the F*&^% up" is completely inappropriate and not constructive. The sad fact is that despite your good intentions you are more likely to turn people away from looking into the diet by making statments like that, rather than actually helping them.