As said by the title, you give the person above a nickname. Nothing innapropriate.
MM for MilitaryMattheus, your old username.
Have you been in the military @MatheusG
? My brother’s in the military
No, I am under the age to enlist. I am just wearing my Halloween costume. What is your brother’s rank, and what branch?
Remember, that was my OLD username.
Ok. He’s like Private First Class or something, and the branch (I think); he’s a Combat Engineer and a Paratrooper.
I remembered that after I posted it.
