Summoner Name Restrictions

I have a 1 character summoner name on League, it's just "D" but I was reported on League by a toxic player because he lost to me in a game. When I open League, I now get a message asking me to change my name because it's "inappropriate"... I don't think it is, at all :/

I understand the minimum name limit is 3 characters but some of my friends have 1 letter names too, their accounts will just experience the same issue if someone reports them also..... I don't think the minimum characters for names should be set at 3, it should be 1. Having a 1 letter long name does NOT affect the game in any way?? Right? I've never seen it affect anything..

Can a dev just please, someone.. please, understand this and just do something about it. I want to keep my summoner name, lmao.

Please don't tell me something I already know.