Depended on the group. Most of comp.* was remarkably flame-free, with exceptions like comp.lang.c until comp.lang.c++ siphoned off most of the foamites. I'll admit that the war of the cancelbots (one of which nearly shut down a main transatlantic link) and the newsgroup creation wars (Seriously, folks, comp.lang.intercal was OK but comp.lang.cobol was beyond the pale?) were flame-ish, but nothing like soc.* and some neighborhoods of alt.* Much like the physical world. Know your neighborhoods.