Topic on All The Tropes talk:How We Do Bans Around Here
This is a permanent link to the first version of this post.
You can view later versions on the post history page.
This seems like a common-sense rule. Based on previous experiences with other wikis, I would suggest reinstating deleted content made without an accompanying summary be considered reasonable behaviour. I've seen a couple of instances of user with an axe to grind deleting things they don't like, without any backup whatsoever. If you can't argue for something's exclusion, I don't think you can be mad when it is reverted.