Yeah, it must be a kbin/lemmy translation issue then. I think you are right in that kbin is parsing it as a link, and then lemmy is writing that out with link markdown. So, it seems as though the syntax just won’t work for kbin users (at least you won’t get notifications from the bot each time you do it since you are on kbin).

I wish there was a way to link to things in an instance-agnostic way, but unfortunately that is not possible yet (open github issue).