^ banned for not knowing how to spell the word, "excretions"

Banned because I know what I said, but your idea is good too.

Banned for brainstorming.

^ banned for barnstorming

Banned for making my carbon monoxide detector sound the alarm at the most inconvenient time today.

Banned for being detected by a carbon monoxide detector.

Barned and brained for banstorming.

Banned because the weather for today calls for a carbon monoxide storm.

Banned because lately, each time that I wash the car, a mud storm become in short time.

Banned for being to naive to realize that isn't really mud.

Banned because I am mud. And "mud" spelled backwards is "dumb".

Banned because there is no b in mud. Plus mud spelled backwards is dum, which is a cooking method as explained here:
https://www.vmsiihe.edu.in/art-of-dum-cooking-blog-vmsiihe/

Banned for using spell check while preparing meals.

^ banned for using spellcheck, thinking it will teach you to be a wizard

Banned for being a wizard and not using memory charms on the developers and publishers of every game mentioned in the community wish list to force them to release their games here.

Banned for encouraging the use of illegal mind-altering magic.