This board exists for two main reasons.
First of all, the game does have realistic aspects. There are people with 2 arms and 2 legs, just like real life. They have swords that imitate real swords, and they swing them at people, just like people did in real life. There are many many more similarities between the game and real life. This board exists to discuss them -- for fun. If you'd like me to keep listing how this game and real life have similarities let me know! It could take a while.
Secondly, this is a graveyard of sorts for game suggestions based on realism. The devs do not take realism into account when balancing an item, and they do not accept arguments for game changes for the sake a realism. So, when someone makes a post in the suggestion forums like "horses should run faster, they can run faster IRL!" The devs move the thread here -- to the graveyard of realism -- where they never have to look at it again and it can die. That's why it was created.
I hope this helps!