The forum you are citing has those sticky notes because the ENTIRE forum is designed for supporters of the NSD.
what about those who are interested in diets other than NSD? it doesn't appear from the forum description that it is entirely for NSD. in the forum description it says "Discussions about the dietary control of AS, especially it's treatment using starch-restrictive regimens." i suspect that there may be others who have an interest in dietary control of AS that may be interested in expanding the discussion outside the realm of simple starch-restriction. i think that this post from the 'failures of NSD' thread is a good example -
"I too, tried NSD, was very strict, tested with iodine for about 6 months. I WISHED I would have felt a difference. I did try no dairy toward the end for about 2 weeks, but by that time I was so disappointed, when no diary didn't seem to do anything, I gave up on the diet. I would have kept up with it had I seen any change in my pain level, but I did not. However, I think there have been enough people on this forum who have had success, I think anyone even slightly interested should give it a good try. Why wouldn't you try something that so many have had great success with?? I do applaud anyone who tries this diet--it takes a good deal of discipline, but if it helps you, I would think it would be well worth it.
From my own experience though, it was a major disappointment. I felt really sad and down and dejected because I wanted so badly for this to work. (and I tried so hard to make it work!!) So, just be cautious if you try it and go in hoping for the best, but don't be too let down if you give it a good try. Just like some drugs work for some of us, and not for others, I think this diet works for some, but not for others.
I would like to figure out why it didn't work for me (B27neg?--but then again there have been other people who tested negative who had good results). Maybe if there was more discussion and studies we could figure out something else that would work better (food/supplements/drugs) for those who were not successful with NSD."
it can make it difficult to discuss other diet options for people who do not succeed with NSD in a forum where only NSD success stories are celebrated and failures are often ignored, explained away by things like Strutsy mentioned, and sometimes even lead to comments such as "the last thing we need is more false claims against this miserable regimen. But that will be Your own karma. So either 'GIT 'ER DONE' or get out of the way because we have seen Your kind before."
however things may be much better than they appear as a recent post on vegetarian diets in the NSD forum shows that it is definitely possible to have an alternative diet discussion in the diet forum without being too intrusive.