dstiles - 8:33 pm on Jan 21, 2013 (gmt 0)
Blend - I used to allow 72.30/16 for bots but now block the complete range as of May 2010.
Lucy - I see a fair few IN IPs both on web sites and mail - they are incorrigible "targetted spam" fiends and several of my older IN blocks were because of form spam. I treat them the same as RU, UE, CN, ID, VN, BR and a few more: block depending on web site "trading" area - if it's UK only they aren't wanted.
Oh, and remember that JS is turned off on a lot of browsers!