Actually I have, and you made my point exactly. I ran a Terminator on a small block and, once I figured out what I was doing, milking the oil wasn't a significant problem. However, during the "learning process" stage, it very definately was. During this stage, I pulled the pan regularly to inspect bearings and they were always scuffed. Would the engine have come apart because of it? Probably not. Was the overall life of the engine shortened? Probably so, at least at first.
I ran Total Seal rings, quality oil, etc. The other maintenance issues are still there, even with a quality toplube. Race gas is just easier.
I'm certainly no expert. I just want to bring to light that running alcohol isn't all roses.....