I will take the point of less readable code as an advantage, and will encourage the programmer to use it more and more. Why? Clearly if the code using auto is difficult to read, then it is difficult to write too. The programmer is forced to use the meaningful variable name , to make his/her job better.
Maybe in the beginning the programmer may not write the meaningful variable names. But eventually while fixing the bugs, or in code review, when he/she has to explain the code to others, or in not so near future, he/she explaining the code to maintenance people, the programmer will realize the mistake and will use the meaningful variable name in future.

I will take the point of less readable code as an advantage, and will encourage the programmer to use it more and more. Why? Clearly if the code using auto is difficult to read, then it will be difficult to write too. The programmer is forced to use the meaningful variable name , to make his/her job better.
Maybe in the beginning the programmer may not write the meaningful variable names. But eventually while fixing the bugs, or in code review, when he/she has to explain the code to others, or in not so near future, he/she explaining the code to maintenance people, the programmer will realize the mistake and will use the meaningful variable name in future.