These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Creator's Pet: Google keeps pushing Google+, to a lukewarm at best reception from the userbase.
Try googling yourself, or your credit card numbers. You can rest a bit easier knowing that Google likes to personalize what you find, but even then, other people might find it...
Scrappy Mechanic: Google Instant. It forces you to search for whatever you're typing as you type it, even though the half-written word/sentence in question probably has nothing to do with what you're really after. The thing is obnoxious when it comes to slow computers, as it takes absurd amounts of time for every individual page to load. Given the amount of loading it takes for one page, wouldn't it be a pain to go through several? To make matters worse, when it seems like you can disable it through your personal preferences, it manages to reactivate itself unless you leave cookies on. And even if you do have a fast internet, the option keeps you from looking at several suggestions.