"Most professional SEOs of my acquaintance would note that, if one has a site burned, redirecting that site to a new site is a fairly risky endeavor for that new site."
I don't think so. If that were the case (and we were competitors) then all I would need to do in order to hurt your rankings would be to stuff a website with a multitude of buy-viagra-penis-enlargement-type of spam/malware and then 301 to your site.
The lack of an href is not required. Google explicitly will not fault you for links /to/ your site from "bad neighborhoods" (for the obvious reason).
An automatic redirect (w/ javascript) would probably be the best way to go, with a message explaining the move while the reader waits the 5 seconds for the redirect to take effect. (Google doesn't evaluate javascript, to my knowledge.)
I don't think so. If that were the case (and we were competitors) then all I would need to do in order to hurt your rankings would be to stuff a website with a multitude of buy-viagra-penis-enlargement-type of spam/malware and then 301 to your site.