1: Up the Editing limit, as Meta points are super easy to get. 1000.
2: Go a bit more in depth with Edit History. Don't allow users to re-edit something into a post that was edited out by an E / E / M, it is edited out for a good reason.
For #1: you are right. I actually put it up to 2000. We don't really need people editing on Meta, and people who got mod/editor privileges on Pokebase can also edit on meta.
For #2: I intend to add a "rollback" feature like Wikipedia where you can undo an edit. So if a user edits a post back, the mod/editor could just click a button to restore their version. I guess I'd need some way to tell mods/editors that the post they edited was re-edited... might be complex...