Yes, they’ve been a “feature” of ARK Survival Evolved since the day it was released in Early Access, through the years of full release, and they continue to be a significant issue in the “remastered” ARK Survival Ascended. Meshing has always been one of the biggest unresolved issues in ARK, it has affected people on PvE servers almost as much as PvP.

I would bet that it’s an issue for all games like ARK & Conan to some degree (Rust, probably?). Any game that’s competitive, and especially any game that allows for base destruction like ARK/Conan/Rust will result in crappy people looking for exploits & cheats. The more competitive the game, the more cheaters will try to cheat, and since meshing is difficult for developers to fix it will always be an exploit that cheaters look for.