incrediBILL - 5:08 pm on Feb 8, 2013 (gmt 0)
is it blackmail to ask those linking ...
It is if failure to comply results in a disavow links report
FWIW, webmasters have already attempted to use the Google WMT URL removal to attempt to remove pages from one of my sites but of course they failed because my robots.txt didn't reflect the removal request. I don't know if WMTs still allows you to request removal of any URL outside of your domain, I was shocked that it did, but at least there were safeguards to avoid the attempted abuse.
Even if the URLs couldn't be removed, there are a limited number of requests allowed and I don't know if requests I didn't make went against my total, so that's a possible vulnerability waiting to be abused.
If they will try to abuse the URL removal tool, I have no doubt that the disavow link tool will be abused.