(I approved this node so that the responses to it will remain.)
This is a community built on the right to do what you will (within reason) and the responsability to not abuse that right, for some value of "abuse". Without giving someone the chance to learn, how can they grow?
Furthermore, Wassercrats has actually contributed to this community in a positive sense. I'm not talking about using him as an example of what not to do. He's actually sparked ideas in others, which is a major function of this community. For example, Living-ness of programming languages. While those ideas may not be huge in some minds, even the greatest ideas were sparked by little observations. While it is apocryphal, I will point to Newton and the apple tree. A better example might be the invention of the sandwich. (Look it up ... kids today eat something invented so that an earl could continue gambling.)
Being right, does not endow the right to be rude; politeness costs nothing.
Being unknowing, is not the same as being stupid.
Expressing a contrary opinion, whether to the individual or the group, is more often a sign of deeper thought than of cantankerous belligerence.
Do not mistake your goals as the only goals; your opinion as the only opinion; your confidence as correctness. Saying you know better is not the same as explaining you know better.
