1) BRIAR is, according a baby names' dictionary, a "thorny plant." i actually ended up with this username because i have this tendency to use first names (not necessarily mine) as usernames. my most used online pseudonym then was "Suzie," (not my name, btw) but by the time i made this account, i've had too many accounts (at least, i believed it was too many) that went with the username of "suzie," or other variations of the name. i then decided to go to my favourite baby names' suggester and searched for a nice, edgy, and androgynous-sounding name. that's when i stumbled upon "briar," which is a female name, but could also be easily mistaken as male name.
2) my offline ("real") name is marie louis, although i'm nicknamed "meme" ("meh-meh") by my friends. i actually like both my real, offline name and my nickname.
as for changing either my offline name or my username, i wouldn't change either of them. although, for my username, i'd probably just change "Briar" to "briar," just to make it seem less "formal."