Here's the thing: It's not as easy as you think.
Although I think you are overestimating your numbers when you say there are 10-15 TFHers (my estimate would be about 3), they do still have a reasonable right to comment where appropriate. It's not our job to keep them from voicing their opinion on a given subject, even if we think that opinion is ridiculous. And as long as the topic started is not a TFH topic, it can be found about anywhere.
TFHers are not the only people with opinions I find ridiculous, willfully ignorant, or grotesquely distorted. Fortunately (for me anyway), it's not my job to decide who is right, only who is following the rules or not. For the greater question you need to take it to management.
Now, back to the topic at hand please.