I admired the ones that used just a series of lowercase Ls and uppercase I's (which in game just looked like ||||||||||) just because of how hard it must have been to log in and play as them.
"Can you invite ||||||||||?"
"He's already on the team."
"No, that's ||||||||||."
"How do I type that?"
"||||||||||, duh."
"Anyway, there's no room."
"Just kick ||||||||||, he's been an idle leach anyway"
"No I haven't!"
"Not you, ||||||||||. I meant ||||||||||"