Don't ask me, then answer for me :)
I judge the success of Google's anti-spam offensives by the volume of spammer screams.
And ALL the evidence shows QUITE CLEARLY, that the volume has increased a bunch over the last few months, as the era of permanent revolution has taken hold.
Many spam varieties that people though were untouchable have tumbled, including all the most sophisticated link farms. Great eh? ;)
Yes there's a lot of spam about - but don't confuse size with success - most of it is instantly supplementary or nowhere. Spammers' desperation shows in their spaghetti approach (chuck it at the wall and see what sticks) :)
And I think that's my last in this thread - waaaay too much fun!