Cleaning Patch Direction

[cj]

I'm mostly concerned about shoving goop into the works, making it harder to clean.

[DefensiveCarry.com]

[varob]

To avoid "pushing" the rod through the barrel, you can insert the rod from the muzzle end then attach the cleaning implement to the rod, then pull it out.

Thats how I clean my shotguns and rifles.

[houdini]

I just bought ottis from the breach it works fine.

[rocky]

How can a patch (cloth) damage the crown?

I can't see a patch or alum /brass rod or jag causing damage while cleaning other than minor scratches. I tend to clean my guns this way out of habit from cleaning precision target/competition guns.
Some of this instruction may have come from military usage due to sectional steel cleaning rods.( this is just a guess however).