The point is that the more you change the characteristics of the game, the less like the game it is. If a pawn no longer moves only 1 or 2 spaces ahead, or you give them HP, or whatever, you change a lot of the feel of the game. What you would once do no longer applies because the new rules have changed the entire feel of the game.
Let's take Star Wars RPG. I've played like several versions. Every time, there are new rules for the Force. Each new set of rules changes the entire way the Force is used in the game. Slight rule changes trickle to other areas.
Now, I'm not suggesting no homebrew. I'm merely saying that changes in rules should be done with discretion and should not drastically change the whole system. +2 for height advantage doesn't break the system. Making Hide a Bonus for everyone breaks Rogues and makes them less valuable.
Thank you for the clarification. I understand what you mean now.
