I think its important to note that is not a hack, its an exploit. Actual "Hacking" where scrubs will download an application to gain advantage because they have no skill so far seems to be a rarity in the new version.
I am not saying they don't exist, they certainly do but you cant say its anywhere near endemic as it was in Legacy?
Policing and enforcing exploits is really where the admin comes into it. Thanks to the frequency of updates at the moment we can expect more exploits to be uncovered and, well, exploited by players, so this is something that the admin of whatever server you are on should be keeping an eye out for and banning offending players if they are caught using whatever exploit it may be.
Thankfully many of the admins are now collaborating to a degree to better be informed of this type of stuff and hopefully be able to combat it more.
No this was a hack. I was streaming twitch.tv/FlREWORKS and my viewers were witnessing it happen live. He was literally walking through my foundation and walls right in front of me as if nothing was there. There were/are wall hacks in Legacy but they aren't as common as aimbot/esp etc.