Make a new section and call it say.... Foods and Nutrition and then all discussions (read arguments) can go in one location. Also, make it a rule that any hijacking of threads whether it's by unnecessary comments in the buy/sell section or taking a photo thread and turning it into an argument (I can't in any stretch of the imagination call it a discussion) be against the rules and stop all the bad vibes. While your at it... maybe make another rule that any PERSONAL verbal attack on another member be punished by a suspension of site privileges and enforce it (no matter the status or position of the offending person).
I've seen the same discussion/name calling take over any number of threads in the last few years with the same arguments brought up. If these were put into it's own section, maybe then the pros and cons of different foods could be discussed in an intelligent manner and a reader could look at the different viewpoints and form their own opinion as to what is best for their fish. Personally, I fed my fish mainly NLS, but, if someone else figures beefheart is best, then more power to them. I have also found studies that suggest that beefheart might have some benefits, so an intelligent discussion of the facts in the proper place might help more people.
just my 3 cents.