OK I need to get this bee out of my bonnet now.
How would we feel if someone came on to one of the Low Carb forums saying Don't eat increased protein, it will give you kidney failure? Saying You Low Carb advocates are a danger to Type 1 kids and their confused parents?
Very similar situations. The "risk of increased protein" view, like the "risk of needle reuse" view, is widely stated by medical professionals, official bodies, and vested interests (the conventional dietician industry in the case of protein, the manufacturers and the lawsuit-averse in the case of needles). In both cases the view is widely stated, and completely lacking in objective evidence. In both cases, there is a plausible "common sense" type of argument, but no data to back it up.
I would like to think that a comment of that type, inserted into a low carb thread, would be deleted by the moderator as unsubstantiated scaremongering, unless it was properly caveated ("some believe there may be a risk") and/or referenced to studies.
I'm not saying that unsubstantiated fear-promoting posts about needle reuse should be deleted by the moderator. I'm just saying people should try to be a bit more balanced in what they are saying, particularly when they don't have a shred of evidence to back it up and are just repeating what is in effect hearsay and conventional wisdom.