It's like opening 20 Blockland Windows and chatting: "/votekick *User*" I don't know if that word, if yes then, ... yeah is it horrible.
I actually would spy myself at the Server, instead of using some votekick Add-On that can be very abuseable. There's also a Add-On called: "Report Player" you can easily report a Player and in your Folder you find Text Files, users are complaining about some Users. I also use that add-on. Votekick Add-Ons are one of the add-ons i 100% hate.