What's always frustrated me is that there are perfectly legitimate complaints about how google has gained their market share; but people seem to like weakening the broader argument with more emotional arguments.
I'll gladly cite examples: Search ad dark patterns. I remember a time when G was _proud_ of that their ads were entirely distinct from native search results, and never caused native results to fall beneath the fold. Now when I search on even a moderately sized monitor, literally half of the first page results are sponsored or ads (native content being entirely beneath the fold), to boot in a manner increasingly less distinct from the native results. (there used to be a separate ad box, and then a line between ads and native, and now just a tiny little 'ad' or grey 'sponsored' blip)
I've seen these encroachments across the board; youtube/G+ integrated logins was another, dark patterns for data-gathering approval on droid ("do you want to share data; yes/cancel"), which I'd best summarize as a slow collapse of any legitimacy to their "don't be evil" mantra from early on.
The one concrete point I can think of for "scraping data without approval" is that when various new data policies were established and yes/no controls added to your G profile settings, I believe some of them defaulted on? I've heard mumblings both ways in the HN discussions on this topic so it's a less strong point than my previous, but may be a basis for a more established argument of that aspect of dark patterns in private data acquisition that the parent was trying to pose.