We've seen users dislike Google's changes over the years. We've seen users say they will switch search engines before.
Heck, we've seen thousands of users say they will switch from Google to Bing.
I've never seen, at least not in the past few years, users tell Google they will switch to Ask.com!
But that is what one user said in a Google Web Search Help thread. He said:
Why would you rather lose customers than turn off autocomplete? I am stopping use of Google and going back to Ask.com.
Of course there is a way to turn it off but who cares. This user said he will go back to Ask.com.
Ask.com is not a search engine - so please, if you are going to switch from Google, at least go to Bing.
Forum discussion at Google Web Search Help.