I never solicited links either, In fact, I've got less than 10 outbound links from my site, but unless you've been living on the far side of Pluto for the last 10 years, Google has been ENCOURAGING keyword usage and it's been common knowledge that making sure your key phrases in your title, description, keywords and content were all tied neatly together. This has long been a well known and NON blackhat way to rise higher in the serps. Look at a optimization report in software like IBP, if offers white hat suggestions to this end.
My point being, in case it flew past the hairdo, is that now Google appears to also be frowning on the common "normal" optimization techniques we've ALL used for years. (if you disagree with ALL, show me your high ranking page that does not use meta tags)
Yeah, I know all well that their target is the "over optimizers" their announcement letter of the latest update contained a few ridiculous examples), but again, unless you've been living in deep space, you should know all about Google's slash & burn approach and false positives.
As we build according to the rules, they seem to keep changing them, hence engineered for failure.
@DD - I agree with you on the apparent traffic quality issues, you and just about (apparently not all) everyone else have been experiencing. I've lost a lot of love for Google since the May Day update. I'm not a hater, I just call 'em like I see 'em.
[edited by: backdraft7 at 4:00 am (utc) on Apr 26, 2012]