meta-opinions about the future of a thread are pointless, and are usually an attempt to lead the thread to premature death. Don't try to pre-judge the outcome of any particular conversation. Either the thread will or will not self-destruct, and may take a direction different from the one envisaged by any of its contributors. Godwin's law has many variants; is there a need for a metafiltrian distillation of it? Has it already been done?