I find the Google+ spam annoying too, but my pet peeve is the redirects Google put on search results so they can tell which ones you click on. I hate this, first because it feels invasive and second because it noticeably slows things down. Most of the time it's not that bad, but every now and then it adds a second, or 2 seconds, or 5. I got so mad I astonished myself by switching to Bing for a while. And indeed the Bing experience was much faster. I've switched back to Google for now, mostly out of habit. But I've gradually gone from being a big fan of theirs to a grudging captive. Something could jolt me into a different orbit.
That's what they used to do. This being Google, I'm sure they had a good reason for switching, especially to something so corrosive of user goodwill. I've often wondered what that reason is. Anybody know?