Unless the person replying on Mastodon removes it of course (to save themselves some characters and because they don’t recognise it).
There doesn’t seem any functional difference between your comment (which implicitly Mentions the community), and the original post on thecanadian.social (which explicitly Mentions it). Screenies from activitypub.academy show that replies to both include both Mentions pre-filled.


https://thecanadian.social/@mike/116234121499688717 didn’t remove the Mention, and so the comment made it to Lemmy. https://mstdn.ca/@cass_m/116234270845317774 did remove the Mention, and so it didn’t.
Specifically for Lemmy btw, the reply at https://mstdn.ca/@cass_m/116234270845317774 demonstrates another problem - that instance requires a signed GET request for its actors, which hasn’t been fully implemented AFAIK.










The API provides it, which means that many of the clients will also have a way of displaying them.
Your instance provides an alternative UI via the ‘Photon’ client at https://p.feddit.org/ - you can use this on desktop to view your profile and select the ‘Upvoted’ view.
The command-line equivalent would be
curl --header 'authorization: Bearer LOGIN_TOKEN' 'https://feddit.org/api/v3/post/list?liked_only=true&page=1&limit=50' | jq .posts[].post.id | xargs -I {} echo "https://feddit.org/post/%7B%7D"but it’s nowhere near as convenient as getting a client to do it for you.
The other site mentioned - https://lemvotes.org/ - doesn’t use the API and is a bit controversial: it tends to be used to see who else voted for a post, and isn’t guaranteed to be a reliable way to show what posts you personally voted for.