Actually the main problem with hackers were not the morons that were capping 3 flags in 3 minutes,because they were too easy to report,the problem were players that were using hacks to kite in pvp,and they still use a hack to mitigate damage,because they keep teleporting little bit and anti-cheat teleports them back,so its impossible to hit them.And its almost impossible to report,even with video,because it seems like lag.
Now that you mention it, some guy recently in one bg was using the anticheat to his advantage. Every time he took flag and tps all over the place and gets ported back, does it so often it was nearly impossible to even land a hit on him. So in a sense, he's just able to troll the enemy team into running back and forth constantly.
Yes it kinda stops them, but it doesn't hurt to make a report about them. Then you got the exploiters with their damage stacking and or instakilling of players.