Adopt target categories

From dKosopedia

Category: Help

When copying a page from one wiki to another, adopt target categories used on the target wiki. If everyone left every category that was on every other wiki from which any page was imported, there'd soon be thousands of categories with a few pages each, totally inconsistent with the target's scheme(s).

Make sure also to mark "this page licensed" if the licensing terms vary at all from the GFDL. In general only open content should be copied because it has prior permission built into the license.

This is a wiki best practice.