BTW, On Usenet you can't take your posts back, so you get used to better check your posts twice before sending them out. Let your posts speak for you.
Instead of quick sending out some unimportant comments or unqualified flames, you think before you write. I like it this way and there is always the posibilty to send a second post with an errata and additional information.
Of course trolls are trolls, with or without the possibility to edit.