spudd73- The PCL has some *VERY* mild abrasives and it does seem to fill a bit. Or at least it did back when I was using it in the mid-late '90s. The P21s stuff and Zymol HD Cleanse seem similar.
If you want to fill/hide stuff, you might have better luck with 3M IHG or one of the Meg's "pure polishes" such as #5/#3/#81/#7 or Omega Glaze from the folks who make Blitz, but be sure to put some carnauba over top of them to "lock the fillers in". A "heavy" wax like Meg's #16 or Blitz would probably be best for this.
While I agree that the use of mild abrasives shouldn't really be a problem, using fillers can keep things looking nice with a lot less work.
Oh, you might want to try 1Z's WPS for this too. Very mild abrasives and what they call "concealors".
Only "cons" are that a) it might not work as well as you'd like, b) you might have to redo it quite often, and c) some twit

will probably say you oughta just not mar it in the first place.
The "pros" are a) you'll like how it looks, and b) that's all that matters, how *you* feel about it

Give it a try and see how you like it. FWIW, I actually sorta *like* using Meg's #5, just one of those products that I enjoy working with.