As I think Kim mentioned, these "moved links" can expire. So if it was a busy thread that many people may be looking for, it can be set on a long time before it expires, and it can be set appropriately at the mod's discretion.
Mand, I'm not 100% sure what you're getting at, but from the jist of it we don't have capabilities to do that, unfortunately. It would be something that would have to be looked into in a techy way, and is not something we have the option of doing at all at the moment, if I've read what you put in the right way.
& yep, a moved thingy can help to illustrate to people what should go where, as it shows you where it was, and also where it's been moved to if you click the link and have a look.
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