hopefully the updates are helping get rid of the industry cowboys who were just in it to make a quick buck.
The crap "seo" companies, i.e., the ones who haven't learned anything new since 2001 and still think the keyword meta tag is important (derisive snort of disgust).
Most of my work is with local businesses (SMB's) - whitehat + local is a nice place to be right now, none of my clients took a hit. (Actually G. made another change which is giving better rankings to local businesses for some searches previously dominated by the big names.)
My oldest aff. site (since 2003) was penguinized. No aggressive link building to that site (mine or otherwise), but it has a directory (curated, strictly one topic, no self-signup) on site, which may have triggered something. I pruned some obsolete links and nofollowed the rest but that was Thursday so hopefully next update. Meanwhile I'll be reviewing data published by people who launched big, controlled experiments after 1.0

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Okay by removing that phrase, are they discretely saying that there are things that a competitor can do...?
It sure seems that way, doesn't it?
I don't want to go into specifics for fear of giving folks ideas
*, but if you're a new site or small site which hasn't established a strong link profile yet, you may not want to draw attention to yourself too soon.
*not that it's so difficult learn about negative SEO, but Namepros isn't the place to teach it.