You cannot fortify a forum. It is not the forum that is lacking, it is the caliber of the participants.
It is analogous to a nation's economy, which is a reflection of the industriousness and productivity of the people in the nation. An economy is not a stock market exchange, that is only the place where transactions occur between industrious persons. If you put bunglers in action at the stock market, weird things can happen.
Same with an Iodine debate forum. If the debaters were industrious, there could be more discourse here, but there is one problem. The problem is, that arguing against Iodine is a losing argument. Iodine is so rock-solid necessary and beneficial, that anyone who takes a position against it risks getting laughed at for doing so. That's why there's not much debate about iodine. What's on here are people with personality conflicts they therapize each other with, by name-calling and other juvenile behavior.