Keep things where they are, or should be. Happiness is a short lasting state.
At least on circus charlie the poor clown has to smile to please his audience. Problem is on "Magical Tree", another old game, where an indian climbs up a huge huge tall taller tree, just... to get there. And all the times he´s smiling, ALL THE TIMES...
But you have nintendogs, tamagotchis, and then the games had an add-on on its own history. I dont remember any tk-90x, cp500 or msx games with that "peaceful" way of gaming... passtime.
We have Club penguin, SIMS, nintendogs, and of course every game has a problem that threats the whole system or play session, even a minimal tamagotchi, but things meet different audiences.
Maybe the author of this post managed to go round and round only to get there "make players miserable".
Makes sense to push everyone harder to get the goal... this "miserable state" once cited, but doesnt mean that an expression cant be used to express a feeling of a combo, or a relief after a bridge crossing.
Maybe Kratos might scream and please himself after beating a big boss. Maybe players can be driven to feel that they must protect a group of people, a city, a battle squad, and by beating a boss they could ensure that protection, which would make them feel like "DONE, my people is safe", or you can make a way to help NPCS othen than killing 300 goblins to get a single nail in order to place on a wedding collar.
For many times we celebrated birthdays on MMOs... On xmas I made a big santa with coins on the ground. And one or two stupids tried to get the coins, which were killed in the next second, but some others just came and "wow thats great, merry xmas... let me help"
Then people gave gifts like money, parts, potions, just to please others, or strangers. I watched that happen, and even being for the reason of a xmas behind it, was an act of good will, to make people happier...
Why would you give 10000 gold coins to a stranger, if not to promote happiness?
I think some facial expressions can be used to express a lot of things on a game, and im not meaning "emotes", but in-game automatic changes, out of your control (Kratos smiling after beating the demon).
I think is just a matter of exploring new things. But surely they arent banal.