If you're on old reddit, you can click the "Other Discussions" button to see every time the URL has been submitted. You can also just go to reddit.com/duplicates/$linkID
Or you can go to reddit.com/$URL (<- They hate it when I tell people this because it's a feature that I wrote 15 years ago as a URL rewrite in the load balancer that they have to maintain as they change load balancers)
Fun fact: That feature exists because I made reddit's co-founder Steve write it for me in exchange for a place to sleep.
Thanks for that feature, I love using it to see discussion of the same content in different communities. It really helps make reddit feel like the front page of the internet, with multiple communities commenting on what's going on every day. If there was one thing I wish was improved about it it would be canonicalization, so that m.wikipedia.com and wikipedia.com articles are connected, or youtube.com and youtu.be links
I've been a reddit user for 15 years.
I have a fairly good memory. So many reposts from even years ago.
Fine, if nobody had seen such post prior, but an indicator of just how frequently a reposted URL is useful, though antithetical to $model.