In the scientific world, all articles and books written contains a list of sources used by the author that you could refer too if you want double check certain information.
Since most games borrow mechanics and ideas from other games, I wonder if it could be a good practice to proceed the same way.
One of the advantage is that if you like a certain mechanics in a game, you might be tempted to find the source used by the author in order to see if you like the game.
It's also a way of preventing the miss conception that you "stole" a mechanic from somewhere else. By citing, you give credit to the original author.
Of course, sometimes you are not even aware of your inspiration source, so it might be hard to list them all. But citing the most important one, or those you know might be a good start.
Do you think there could be an interest in doing that?
I did it! (^_^)
Would that not be beneficial for both parties?
When People clone apps like Candy Crush, that is some what their objective, but in that case, it's worst because they try to replace the original. While when you make a game inspired on other games, you do not attempt to replace the original.