On the one hand no. On the other hand, yes. Depends on how often and for how long. Please Register or Log in to view the hidden image! I always find it easier to mass debate in public where lots of people can air their views. You do have to be careful of burning your straw man. Many people find ad hominems one of the worst aspects of mass debating it takes ages to clean the mess up. The reason mass debating makes you go blind is that people have a habit of poking themselves during a really long rant. They get too excitable and are only calmed down by water thrown on them. The best method of mass debating is to use long, slow well thought out arguments.
sciforums seems to provide evidence to the contrary...unless you're all using those funky speech interfaces to read posts....
Now it seems to me I recall that there was something else I once heard on the subject of some action causing blindness. What was that???? Mass debating? Well it might cause blindness from seeing RED.