I think that those who use substances while performing...or have become dependant on substances prior to performing....run the risk of ending up looking like Eric Clapton in the '70's...how many people saw him vomiting on stage during one of his performances during that era??? Not a pretty sight.
Then of course, there's the infamous Jim Morrison drunken spectable in Miami that led to his arrest for "public lewdness".
There is a time and place for substance abuse! Just not on stage!
And if your dependant, please get your fix before the show so we don't have to witness your acute withdrawal symptoms during the performance, thank you very much.
Well I have a history of being a punkrock frontman as well as jam session flute player, so the substance abuse was always a part of my playing. Pose, I know, but I don't really enjoy playing sober (I tried once). Now I just try not to drink that much and prefer not to get high before the show, because I get sleepy behind the mic. I'm getting old. (btw I once heard of a drunk HARP player, taking a whizz from the stage. After that, we asked him to be a guest on our latest album )
For me there is no need for drinks on stage - the power of the riff compells me!
I also have way to much expensive gear sitting around shady venues so I have to be especially alert no one walks off with a guitar case of Fractal unit hahaha
Pretty much just water. I'll sometimes have 1 beer on stage with me, most of the time it's not finished before the end of the set.