Right, so,
I haven't been playing on cubecraft that long, but with each game, I am becoming less and less a fan.
While your gamemodes are fun (namely eggwars), your poor, poor, anti-cheat system (if there even is one) isn't. I have played many games of eggwars over the last month or so, and I'd say 90% of the games have hackers in them. Now, yes, I know it's still possible to win the game playing with hackers, but what fun is it? It messes endlessly with your statistics, for example, adding 20 deaths each game and only a handful of kills because that yellow guy over there can hit you from his egg while you're standing on yours (slight exaggeration but I guarantee you know how I'm feeling), and changes the focus of the game from breaking other eggs to just finally killing that one hacker.
Basically, there are two simple ways to improve this (notice I'm saying improve, because, no server can stop 100% of hackers, but cubecraft surely can block more than the 2% they're taking care of now):
1. Implement a simple anti-cheat system that covers obvious hacks; fly hacking is one of the most common, and obvious, hacks people on the server are using, and also one of the easiest to get rid of. or,
2. Implement a simpler system for user-submitted reports. The system you have now, while it may be one of the most secure, surely turns people off from submitting reports. I went to submit a report of (you guessed it) a hacker in eggwars a couple weeks ago, saw it took more effort than just following an outline and attaching a video clip for evidence, and decided not to. While it may be my decision not to go through all that work, ignoring that submission ultimately impacts everyone.
[TLDR]: Get a better anti-cheat system pls :)