keyplyr - 5:48 am on Jul 15, 2012 (gmt 0)
See, that's why whitelisting user agents beats blocking.
I whitelist. However not everything is what it says it is :) I also keep a list of what I block (hence the adding new ones weekly.) Actually, I usually go a couple weeks now without needing to change anything server related.
I also block most all proxy & proxi identifiers, filtered through a few whitelisted IP ranges. I also block all trancoder and translator tools, add-ons, toolbars, etc.