Edge - 12:36 pm on May 6, 2012 (gmt 0)
Lessons learned (for me anyway).
I've never been much to experiment with SEO methods and strategies. My philosophy has always been that if there is a really good reason for a visitor to come and keep coming back – they will.
In other words, focus on being helpful, having quality and presenting what the user likely came for.
What this Botnet physically demonstrated to me is that a high bounce rate and a short visit duration (which is what a spammy web site likely has) will affect your AdSense earnings and position within the search engines results.