Original sentence: Bill Warren participated in various Usenet fan newsgroups in 1990s, often becoming involved in flame wars with the other participants
Edited sentence: Eventually the discussion in these newsgroups would deteriorate into flame wars in which Warren would remind the other participants that he was a professional film critic and that his opinions were superior to everyone else's.He would initially join fan newsgroups to pontificate and preach.Most users could ignore the vain self-promotion of an obscure, self-proclaimed film expert, but others would take exception to Warren's jaundiced opinons and to his extremely short temper.Usenet newsgroup users from the 1990s are familiar with Bill Warren's acerbic posts