Guests

Guests are Roblox players who are too lazy to create a free Roblox account, probably because they don't want Roblox to know their email address or are ashamed to be playing Roblox, even though you need the Roblox launcher to even play the game. Playing as a guest is even more shameful than playing as a Bacon Hair, and is probably one of the most shameful things a human can do. Playing as a guest means you cannot change your appearance. Robuxers and epic gaymers make fun of them because they feel a sense of superiority because they have a gay Adidas hoodie and the guest doesn't. 
"i hate guest" -Roblox forums user