Dry Top going off the map
You can learn how by watching the Youtube videos. There isn’t anything there to ‘exploit’, so nothing to abuse. /shrug
Just going out of map isn’t an abuse “per se”, it’s just like exploring glitches on map (some are funny at times). However, if such thing is used to go under map and then taking advantage of this in events, kills and such, then there can be abuse involved.
I don’t think it’s an exploit if the bug / glitch is not abused or given player advantage.