Fade the public on every game?

[bills217]

This is kind of a noob question, but I'd like to get some thoughts on this...

Fading the public is obviously a good play, since the books know what they're doing and don't give away free money.

So, when you have access to things like wagerline and you can find out what the public is doing...why not fade the public on every single bet you could possibly find where there was xx% of public money on one side? Why would this system not work? If it would, does anyone do it?