if the game doesn't have health regeneration on the hard settings, and does have it on the easier ones, nobody is in a position to complain. What would be the problem with it, or are you just trolling now? You seem to just want to argue for the sake of it
Forum is a place for discussion but not a polling place. If I do not agree with your opinion then I do not only say so but also give my arguments but do not repeat my positon from post to post and do not pin a label on my opponents like someone does.
Using painkillers / med kit is not what people are talking about here, they are talking about having your health come back indefinitely.
The trouble with regenerating health is that you can survive a gun fight after taking heavy fire, then just wait and heal, then go into your next gun fight, and that's not what Hitman is about to many people, it takes away the purpose/challenge. But, as I said, to inferior players, it appeals, so put it on the easier difficulties.
First - we speak about "Hitman" . Hitman has own gameplay elements which not similar to gameplay of shooter and stealth games.
Second when we speak about one element of system then we must understand all interaction between this part of gameplay and his other parts. All the gameplay elements are interconnected.
Do you never ask yourself why is a shooter (it is game where gamer uses at least 1000 bullets against at least 100 bots) has checkpoint system and divides on several difficulty and gamer chooses 'retry last checkpoint' at least 18907654908 times before he completes a game and then with false feelings that now he super puper "hardcore" he ejects disc and places it to a drawer of his table and then goes to a store to buy another such stupid game.
Most gamers think that if a hero shooting during gameplay then it is shooter however some missions have only 10 or 15 bots but only 5 of them have weapons!
Here another example. They say (gamers but not devs because devs are making money) that on easy mode hero must have more life, AI must be stupid and die after one or 2 shots, but on HARD difficulty AI must be super smart and strong but already hero must die after 1 of 2 shots and all this will force you play stealth on hard mode!
Use of painkillers means that your health bar is effectively made longer, but it is still limited.
Where is logic in creation such complicated system instead of increase a length of a health bar.