wilderness - 8:26 pm on Apr 2, 2013 (gmt 0) [edited by: Ocean10000 at 2:02 pm (utc) on Apr 3, 2013]
This varies from server to server. If there is a list of IPs that should be blocked on every server please post a link to it.
It appears that unless a copy and paste list is provided to you, than the practices in accumulating such a a list makes their existence invalid.
What if you block a data center then an important search engine starts coming from an IP in that data center?
The last major search engine to appear on the WWW was MSN (aka Bing) in 2003, thus your "theory" that another will appear is as likely as hell freezing over. Allowing anybody and everybody under the guise that they may be the new second coming is a lame practice.
[edit reason] Removed flame [/edit]
[edited by: Ocean10000 at 2:02 pm (utc) on Apr 3, 2013]