At least the Chinese did a more convincing job of it than the current crop, but I well remember the occasional moment when their bots stopped stoking it and their exchanges died instantly. Even if there were some real people as well it was nothing but zero fee froth.
I could never get over how mindless the press were in eulogising China's trading 'dominance' when it could be debunked with twenty seconds of research. The death of those exchanges is probably the biggest factor in the price being set free. For some reason the West would run screaming every time those 3-4 Chinese teenagers dumped on them.