It seems a strange distinction to say one person is a creator and another is the co-creator. Kind of by definition, that makes both people co-creators.

Though to be fair, there's a good chance that your pleas are not heeded here and that the admins do close ranks (I'm hoping some form of correction occurs, becuase it's pretty obviously a petty and personal ban). Point being, you and this community may want to (if you/they aren't already) think about what you want to do should they ignore you here.

Also, in the proof you provided ... it's important to note that they banned beaver from the whole instance. You'll see bans from a whole bunch of communities as well as a general in the modlog: https://lemmy.ml/modlog?page=1&actionType=All&userId=9782557