What made this workable was that discussions were rarely "hot" - typically you discussed with one or two users over a span of many hours / days. Once you got ma

What made this workable was that discussions were rarely "hot" - typically you discussed with one or two users over a span of many hours / days. Once you got many people editing the discussion page at the same time, you got conflicts which were solvable but annoying. (My experience is more than 10 years old, though)