Msg#: 26368 posted 1:42 pm on Oct 24, 2004 (gmt 0)
It will take 1-2 updates until the PageRank information gets updated, so you will be able to gloat them when their PageRank all but disappears. We've been there too - when clients hire someone else. In a few months, they will have wished they had kept you.
Msg#: 26368 posted 1:50 pm on Oct 24, 2004 (gmt 0)
Google doesn't check for validation of the markup (nor do browsers, for that matter). As long as it's not so bad it can't read the file or has serious parsing errors (missing </head>, for example), then validating the file or adding a doctype won't make any difference for Googlebot.
For the end users, that may be a different matter...