Username validity check for .seen
Username validity check for .seen

megaslowbro1/slowbro-mega-Bot,xfix/Pokemon-Showdown-Bot,yashagl/pokebot,TalkTakesTime/Pokemon-Showdown-Bot,LustyAsh/Pokemon-Showdown-Bot,Flareninja/Pokemon-Showdown-Bot,superman8900/Pokemon-Showdown-Bot,Morfent/PS-Roleplaying-Bot,AustinXII/Pokemon-Showdown-Bot,xfix/Pokemon-Showdown-Bot,megaslowbro1/Slowbro-mega-Bot-2,MonoHearted/PS-Roleplaying-Bot,GrievingTrauer/Pokemon-Showdown-Bot,LuxGracetail/PS-Roleplaying-Bot-Old,Flareninja/Pokemon-Showdown-Bot,TheManwithskills/Bot,Dirpz/MemeBot