Brite-Boys: Good, Bad or Indifferent?

[selector]

Wiping with alcohol should get much of the crud off for you, and then you can follow up with a quick, light buff using the Bright Boy.  I don't know why they would market something so successfully and widely used if it were as deleterious to the tracks as some folks insist they are.

[CSX_road_slug]

Hi all,

My track's long overdue for cleaning; even though my locos run somewhat OK on it, I can see the oxidization build-up.  My question: Is it OK to use a brite-boy to rub the tracks clean?  Or is it something that was more applicable to the days of brass track? 

I've heard a few people say I should never use a brite-boy because it will scratch the track, and cause even more dirt to accumulate on it.  Other people say it's perfectly fine, and the only thing other than solvents [which might leave residue] for really getting caked-on crud off the track.

What are your thoughts on this?