This would be a better option to add, when I was registering on the forum, I thought usernames could simply be edited and changed when the user felt like it, just like some other platforms I was on before I came into the forum. If I had known It is not possible or very difficult(based on what is required to do so)i would have chosen a different username, even though I've fallen in love with this one, it'll still be good to let new users know about that part of the forum.
Using real names is not a problem at all, there are probably more than 1000 people that have the same name all over the world, if you do not declare your identity, you cannot be linked to anything.