I agree it's pointless to complain about auto tune in pop music (where it is most prevalent). Using auto-tune in a recorded setting is to singing, what recording a guitar part at a slower tempo and then speeding it up in your DAW is to guitar playing. They are perfectly viable options if you want to get something to sound perfect in pitch or timing, but if you can't sing/play the part live then that is a reflection of your musical skill. In pop that usually isn't an issue because it's more about having a catchy beat and melody rather than showing off musicianship, and it's not any kind of secret that a lot of pop stars use auto tune. It's only an issue if you're pretending you don't use auto-tune when you actually do. The same goes for lip-syncing.