Why else would someone go in a server and do what people like this do?
There are various reasons why people do this. The general reasons is that they have acquired hacks and they are there to show them off, test them, or to induce bragging rights. Others are there simply to empty a game server or to disrupt the reputation of the game to the extent that players move on to others without looking back. When is the last time someone loaded up CoD 4 or MW? It's been a while; people refuse to play it online because you'll end up in a lobby/game with a bunch of hackers. Who wants that? I've known of reports where one community hires hackers from the lowest depths of the internet to "attack" a rival communities servers so they gain popularity. It's happened with BF2, It's happened with CS:S, and yes, it's happened with BF4.
With the introduction of Game Time, it's essentially given the hacking/scripting community an unlimited test bed to try out the hacks. They sign up for an account, install/run the hacks/scripts, and go to town. What do they lose if they get caught? A free account. Register a new one with a new email account and they are good to go. I've also read upon hacks where a script can be run, it changes just enough information to make the head servers think it's a new account. Hell, there are hacks that show you where the dogtags are for the Phantom bow. With the game being so loose with its code, it's not surprising what the hacking/scripting communities are discovering they can do to obtain an unfair advantage to the game. You name it, there's probably a hack for it in BF4.
Some test the accounts to see how long they have until they are caught. If they are not caught, then they usually sell them to players so they can also have in on the fun. However, most hacks, being free, are usually caught within days time. And, with the introduction of so many server-side services that run alongside a BF4 server (BF4DB, GameMe, iStats, FF, etc) those that are well educated know how to hack and stay under the radar for weeks if not months.
So, what is the end result? Server communities, such as eGO, CMW, ADK, TBG, just to name a few, have to enlist extra help to diagnose a possible hack. And, when a low level player is absolutely owning in a server, what is your first prognosis; a hacker, a player on a lucky streak, duplicate account? They have us chasing our tails until we throw up. Because we refuse to allow BF4 to carry on that reputation of being riddled with hackers and cheaters. The only thing that the server admins can do is systematically ban them and the only thing that the players can do is realize that this is an endless battle and be patient while all players deal with them. Swaying from this goal is allowing them to win without really trying, just like when they "play" the game.
Stated in the rules is actually no hacking accusations against players for this very reason. We do enforce it when we can(I hope all of us do) for this very reason.
A name like that coming into the servers is an instant ban. As server admins, we should have the ability to kick any player without having to copy their name into a notepad document to get the proper phonetics and spelling. Not to mention that that player's name formation is synonymous with a well known Game Time hacker. And, if it was a legit player, oh well. Shouldn't have trolled the server.