Okay, so security is always on my mind when using WordPress. So when creating a new user, I try to be creative with that as well. Maybe add some special characters…
Hmmm – problems. Special characters not accepted.
So, which special characters ARE allowed?
Well, according to what I found you are able to use:
Not a wide variety, but still – better to use these paces and dashes then just sticking to letters and numbers.
And remember to throw in a few unexpected CaPS in there as well!
And if you want to use some of the other characters that your keyboard offers you, you might be able to change some coding in your WordPress files to make that possible. Have not bothered to look that up yet, though.