I am very careful with epoxy fumes and dust <img src="http://www.catsailor.com/forums/images/graemlins/grin.gif" alt="" />



I dont think the discussion is useless, it is rather an important topic. The problem with any internet discussion is to keep control of it and not fall for the temptation to slip in a few barbed comments when not everybody agrees with your view.
When you know a person in real life and respect him you are more inclined to listen to what he say and at least consider the points. On the internet, I dont think it works quite like that. But over time, perhaps what is said in an internet discussion previously re-surfaces in a different context and you find it to be true or undeniably false. I know I have learnt a lot of stuff from discussions here which seemed useless at the time, even if what I learnt perhaps was not the topic for discussion..