Erm... What the hell!

Doesn't remove commands from the tab-complete, doesn't have proxy support, doesn't block packet level commands... and doesn't even block commands with syntax (/bukkit:pl bypasses this)

Low effort, useless, and any pluginHider PLUGIN by a competent developer would be way better.

Doesn't block tab complete, doesn't block on a packet level, it's a skript and about command isn't even blocked. All in all just use PluginHider which will do a much better job aswell as being an actual plugin.