Hm.. what are your machine specs and what browser do you use?
I know that I'm missing reverse image search
Very odd that they pulled code that worked on legacy browsers, but it's likely a result of what I just replied to Acer: the code they push now to users with supported browsers is probably leaner thanks to dropping legacy support. Here's their claimed supported browsers for image search:
^Those browsers are pretty old dude. Furthermore, there's always the original reverse image search that will work anywhere: www.tineye.com
What I don't follow is how it advantages Google to turn off a service that worked just fine.
teh googs works in mysterious ways. You've clearly not seen their graveyard:
In answer to this question, and to @AcerPlatanoides one, IMO google doesn't mind positively affecting user behaviour for most users (reserving features for modern browsers in an effort to improve security overall) to the chagrin of a small number of users. The information highway should not require a late model car and I would contend it doesn't as there's always a way to make things work. They're not saying they can't do it, they're saying they've made a choice not to. We can try to divine the reason by reading tea leaves but google is notoriously stubborn with the finality of the decisions they make.
Meanwhile, if my browser will work fine just by flying a false flag, then what was the point of Google cutting support for my browser?
Because, until I told you that such a thing even existed, you probably didn't even know it was a thing. Most users don't. It happens to be part of my job, which is why I have it. If I had not told you about it your only other option is to upgrade, which is precisely google's desired outcome. They don't care which browser you use, just that it's modern.
If, on the other hand, the search won't work properly under a false flag, then what was the point of you mentioning the false flag extension?
It's impossible for me to know whether it WILL work for you, as I have mine installed on Chrome 36 and I have NFI what your setup is. All I know is that if I set the user-agent to ie6 it borks the search by image function, but if I set it to ie9 it works perfectly. Instead of snarkily questioning me why don't you install it and let us know if it works?