Yes and yes. I’ll try to find an example - but it’s difficult. Since the older submissions get silently rolled up, the only way to detect multiple submission

Yes and yes. I’ll try to find an example - but it’s difficult. Since the older submissions get silently rolled up, the only way to detect multiple submissions is to use an outside resource that’s captured the previous submission(s), such as Archive.org or HN’s search at https://hn.algolia.com/ https://hn.algolia.com/ . (Algolia only indexes the most-recent rolled-up submission, but it doesn’t update its index immediately, so you can sometimes catch (only a single, it would seem) older submission(s) that have since been rolled-up...)