Replying to No wax/perfectly smooth base finishing

On to my second noobtastic question...

I read somewhere that people sometimes scrape the stone ground part off the base of their skis. This gives it a completely smooth finish. No wax whatsoever is used. In the end the ptex drys out, but it is faster and smoother than any waxed base.

the reasoning behind it is that waxing is left over from wood skis, and is unnecessary now with materials like ptex.

What do you all think of this?

Does anyone do this? And are there real reasons for or against it?