Self explanatory. Too many hackers. Then they end up winning the game. You know what to do. S-U-P-P-O-R-T
No reason not to. Just add barriers so you don't ruin the aesthetic of the maps. Identify the highest (reachable) point in a map and start from there. Hackers will be within bow range.
Honestly don't think it'll fix anything since they can still use phase to get through the blocks, but it's still a good idea to prevent fly hackers from flying out though. Support.
If you got a good client/customed you can just make your way through whatever obstacle there is, however, I still support.
No support some maps were intended for players to get outside of the iron bars. Unless they have crappy design.
The only map where that was possible is Rust, which has now been blocked. No other map has design that allows you to exit the map in a legitimate way.
Carnival. That map with the helicopter and invisible parkour. There are a few maps that let you get outside the map legit. Unless they've been edited since I last played.
Both of these maps have been fixed. Any other spots on other maps have also been fixed. There is no longer a way to legitimately exit the map.