That’s a good idea, or maybe a final “Are you sure???” delete confirmation box that tells you it noticed you pasted the link on the forum.
It could also have a link to the post(s).
But I like the idea of a small flag icon on the apps screen that indicates it was posted to the forum the most.
As a partial workaround, your most popular links are listed here: Anvil Community Forum But I can’t find a way to get a list of all links a user has posted.