User blog comment:AngrydroidForce99/Why people should not be blocked for incidents on other wikis/@comment-24801399-20151125165503

I find a scenario such as

User from wiki A goes to troll on wiki B, claiming to be a representative of wiki A, and that they are trying to get more people from wiki A to troll wiki B. Wiki B admins inform wiki A admins of what User is doing, and wiki A admins block User for a few days.

to be a perfectly valid reason for blocking for something on a different wiki.

Banning from one wiki because they edit on another wiki? Seems silly. But so is life. What can you do.