Basically this group named the Khans showed up on session 1.5. They think they're all badass by making TB traps and killing newbies (literal beginners that don't know what's going on) which are disliked by the PvP players. It took at least 8 months for these faggots to start real time PvP with crappy PvE builds only to end up getting wrekt
Then finally many PvP gangs such as BBS, TTTLA, Rouges, BSG, Old Virgins, something shady sands, MoD, and many others got bored of Reloaded and stopped playing or waiting for wipe. Those who remained split into Khans, UV, and Social Warriors. Finally with the help of veterans who stayed, Khans finally made proper PvP builds and can fight, but only reason they show up is cause of Lemarks (best PvP leader in FOnline) and Mushroom (another leader but also a douchebag) lead them. Without them they won't do anything other than TB traps. They're also very ignorant people, just watch how they'll come and trash talk. They also hardcore roleplayers which makes them more disgusting.
But welcome back, if you're planning to PvE I suggest not to since wipe can be announced any moment.