"Modern" etiquette seems to allow for holding a red wine glass by its bowl. Sorry, but no. Please don't do this unless you want to look like a heathen.
This has always been one of my pet peeves. I don't know why - - okay forget that, I do know why! How gross is a wine glass covered with someone's greasy fingerprints? Or for that matter sloppy lip gloss (for god's sake, BLOT before you drink). But not only for etiquette, but for practical reasons - - the temperature of both red and white wines (more so white) are kept better when you don't handle the bowl.
I agree