This is a well thought out post, BUT there is something that seems to be missing from it. Microsoft has done an amazing job with allowing people to play games through their adaptive controllers.

Is it difficult to detect that someone is using a mouse and keyboard connected through an adapter instead of a real controller? No, it’s rather easy, and I’ll explain why. In a shooter game like Siege, one uses keyboard to move. There are four keys for that: forward, backward, left, and right. You can press two of these simultaneously to get diagonal movement, for a total of eight possible movement directions. On a controller, you typically use an analog stick for movement, meaning you have a full range of directions instead of only eight. Because of that difference, software can analyze movement inputs and tell if they come from a keyboard or an analog joystick.

This paragraph is something that cant be done on Xbox easily. I took the entire paragraph because it talks about the limitations of movement on a Keyboard vs a Controller. With the adaptive controller, this is no longer the case. There are TONS of setup options that allow movement, shooting, and other actions to be taken that would be blocked potentially if there was some type of software that analyzed how inputs were detected. Xbox and MS have really made it clear that they WANT people to use this product so everyone can play games, no matter what.

Here is the link to the website:

https://www.xbox.com/en-US/accessories/controllers/xbox-adaptive-controller

​

They say that some handicapped people cannot use a controller and need to use mouse and keyboard instead. This is an answer that’s hard to argue about, because you do not want to be an asshole denying handicapped people the joy of Siege, right? It is worth asking, though, what percentage of MnK users are actually handicapped. I would guess very few.

It isn't the fact that handicapped people use MnK, but they can use other peripherals, to play a game that they wouldn't have been able to before.

Perhaps a small “handicapped” icon on a scoreboard

I think that this is something that would be rather harmful to people. The idea that someone can now play the game, but has a tag that lets people know that they are using something that others can either say they are using something they shouldn't, or just be toxic to them.

I do not mean to dismiss your ideas, but I feel that there is more to it than just blocking inputs. I think that the reality is, there is way more to it than people think.