He was a regular poster on comp.lang.lisp, and one of the contributors there described him thusly:
"Ken Tilton is an aquired taste - if you can ignore his inflammatory remarks his advice is usually good. When I first saw some (most!) of his posts I initially thought WTF! but think of him as someone with Tourettes Syndrome and just look at what he is saying not how he is saying it!"
There's a couple of fortune cookie files of quotes from him (collected by someone else, but you can find them on his blog), they do make for funny reading, but you can see how some of this would sting if the remarks were directed at you:
http://smuglispweeny.blogspot.co.uk/2010/08/fortune-cookie-f...