Since my members hate how I have vanish on my server... they always annoy by begging me to remove it, I even blocked /plugins so they couldn't see I had vanish, but now I know how they knew I still had it.
They would type '/vanish'
And if it said '[Vanish] Access Denied' I had vanish.
So could you please make a toggle like 'hide-permissionless: true' or something so I can finally say I removed vanish, thank you.

There isn't a particularly reliable way to ensure duplicating the normal "command doesn't exist" message.

could you make it so we could create our own messages then, then I could just set it to the command doesn't exist message
EX:
permissionless-message: 'Unknown command. type "help" for help.'

I intend to do that in the next big release.

thank you :D

Your members are a serious nuisance if they're already complaining about Vanish.

you have no idea...