Whenever a motion is amended, its number changes. This means that any link that points to the motion's document stops working. This makes it necessary to update several documents, and we often forget to do so.

It would be easier to have permanent (or at least semi-permanent) links to motions (e.g., by their name, ignoring the number). The only reason I see to keep the links as they are, is to make it clear that a referenced motion has been updated since it was referenced (e.g., if referenced in an announcement or email).

If we want to proceed with this idea, I'm willing to have a look and propose the required changes.