I can kinda see FB's point, but will say that if HP increases it should top out to a cap any player could reach, NOT just those that can play 12-18 hours a day.

This is billed as a survival game.

So I would expect your survival and success in this game to how much time you devote to surviving not mindless grinding.

So, My though would be that your HP could be based off how well you are doing personally. The less thirsty/hungry/tired/encumbered you are and the more comfortable you are the higher your hp is towards a cap.

This way, crafting lots of levels only affects the quality/durability/damage/bonus an item has.. as it should. And it won't affect HP as it should not.

Damage levels should go up with how high your combat skills are. HP should NOT go up from combat leveling.

The combined effects will be ANYONE can get their HP to the same capped high level, and only quality of weapon and combat skills will give any advantage, and comfort level ( including hunger/thirst/etc.. ) will determine how much damage you can take.

THIS is what I would like to see and would agree with.