@engineer,
Perhaps someone else has an opinion on that, engineer, because I'm not exactly sure of what a "spam-bot" actually is. Sorry.
But the
formula this poster employed was to use an existing post in a thread and post it as his own (which at a quick glance could well
appear to be a genuine contribution to the subject under discussion), then add his spam link at the bottom of each post. On thread, after thread, after thread ... for hours.