When you’re using facebook and you change your user-name, do capitals matter?

why don’t we say my username is usually:WoMAn as well as i kind woman in will them say completely wrong username or perhaps will the item still ok , i’ll in do capitals subject and does one still log in with your current email

No, a computer owner name is just not case-sensitive.
You will be able to fire wood with both equally your contact and username.