Reporting spam to yahoo

[Jel]

Anyone had good or bad experiences? I've used the form at http://add.yahoo.com/fast/help/us/ys...portsearchspam in the past and it's taken a while, but the offending domains were removed, however, I've reported this guy:

http://search.yahoo.com/search?p=b4....&cop=&ei=UTF-8

For a whole bunch of terms, and included in the 'notes' part of the report form that everything on that subdomain is a cloaked page that redirects, to no avail. Obviously I don't want to spend half my week reporting every phrase his pages show up for, but do I really have to grin & bear my own pages being pushed way down in the SERPS?

Any ideas? Thoughts?