Do you think auto-tune is appropriate among artists today?

Yes,they don't sing well

NO, it's garbage and should be banned!
That is of course unless you can't actually sing.

Sure if its used properly. Autotuning is a tool just like a turn table or for a musician its instrument. But if you abuse it and use it improperly than no. Auto tuning at least among my friends seems to be a taboo subject, but it can enhance the song and make it unique. I mean it can help do stuff that a singer may not be able to do naturally. So yes but only in certain circumstances.

I hate artificial music... I even go back and listen to early recordings of songs because I typically prefer them over the studio versions, I like hearing the real thing.

No because it gives the illusion that people have more talent than they actually have. have. I guess its okay if singers with actual ability use it for an effect to enhance a song but even then I think it's still being overused. I prefer natural singers even if they miss a note now and then.

If you want to use autotune, then use it. Yes, it's nice to be able to tune by ear, but a lot of people can't do that. Yes, it's nice to have a different guitar for every tuning you will use during your set, but many people cannot afford that and re-tuning the guitars for an alternate tuning takes time out of your set.

OTOH, if you are auto-tuning, then everyone else will have to tune to you. Just because you have autotune, doesn't mean that the guitar is exactly tuned.