
I think they know how do these games work, but if the story based on the reality then the manga would be really boring, you know~ the mc couldn't even have a chance to be special

You can still have a special MC even while following actual mmo rules. Just look at real life mmorpg's. There are always those that are at the top. Plus there are stories where the world follows actual mmorpg rules and it still isn't boring. Log Horizon for instance. Or the Legendary Moonlight Sculptor.

Yeah, but they usually pay to win, I don't think that would be cut for a hero in a comic. And also the two anime you were using as examples.... I think they also don't really follow the rules. There're hidden quests and content in them and that is impossible to have in a real mmorpg. (Legendary Moonlight Sculptor -> rare class, hidden quests, hidden places; L.H. -> there are hidden quests too, but it's too different from a real game - you can make objects that don't have any blueprints -)

I guess a story about a regular player gaining fame by being an oddball and by sheer circumstance would be hard to put in a story like this.
As for my examples. I have to admit that I can't think of an mmorpg where hidden quests like that exist. Since, you know, internet. But it wouldn't be impossible. Especially considering how convoluted the sculptor quest line has been so far.
And I guess L.H. might be a bad example as they mix a 'real fantasy world' with the game. But the game mechanics that are there are realistic. And I haven't seen any hidden quests in it I think...

I think there're hidden quests, but they are not that obvious. Do you remember when Shiroe met with the sage and then they went to his hide-out? That started a kind of quest-chain, but there weren't any notice message or something like that... and it's the same with the Kunei clan. I think these were hidden quests (or quest-like)

Those weren't quests but situations that happened because the npc's all started acting like real people. :P In fact, I believe it was even hinted at that quests as a whole didn't work any more. As it was said that newer players couldn't get one of those magic storage bags any more since you got that from an early quest in the game.
Guess L.H. was a really bad example to use since it doesn't technically play out in an mmorpg.

I dunno depends on the type of mmo you lay, in some traits like alchemy are seen as useless when potions are so cheap and the cost of making them is more than what you get back for selling them, BUT that may also depend on whether you need to specifically equip alchemy as a trait rather than anyone at least being able to make base alchemy potions from that start..if you get what i mean.
So after finishing the last chapter a while ago I just started re-reading this manga. And right from the start I feel like the author never played any mmo's himself. The player who kills the mob gets the reward? I never heard of any mmo like that. At most, the one doing the most damage gets the reward. Also, players thinking archery, cooking and alchemy and such are useless? Never seen an mmo in my life where players are like that. If crafting skills/classes are really useless for combat, players would still make alts to craft stuff from materials they got from a combat char and sell that to make money.
Actually, the same goes for most mangas that are set in an mmo of some kind. I really like this story, and mmo-based stories in general. I just wish the authors would do some damn research for a change. ^^;;