Kith,
I didn't take it as an attack. Just a discussion about RPG mechanics.
Actually the maxed out Boot Hill character doesn't stay the same. The XP awards allow for characters to improve beyond where they start.
As for a character stating with 24s in stats, that's not munchkinism, that's cheating.
Look to me like your biggest complaints are with the concepts of advantages and disadvantages. If your placers have good character concepts these all work themselves out. Most GM/Narrators I know can tell the difference between a good concept that happens to be tough and someone just going for the pluses fairly easily.