It seems every time I use tagmoji three entries appear on the Timeline. I have no idea how to fix this.
We manually clean these up when we notice the duplicates in Discover. Long term, Micro.blog needs to be smarter about realizing that those posts are the same thing and collapsing them into a single account and set of posts.
I suppose Mastodon has to do the same de-duplication of posts, because I see duplicate posts and comments there as well from micro∙blog users.
Also, there’s a user called @micro.renevanbelzen.nl that points to https://micro.renevanbelzen.nl that no longer exists (I deactivated that subdomain recently). I can’t delete that user, but it takes ownership of my posts in that section.
Thanks. Yeah, this happens if someone tries to “follow” a domain name. It’s basically the same problem… We need a way to take ownership of it (by verifying the domain name) or automatically combine them.
After a year there doesn’t seem any progress with this bug. I’ve tried the 
tagmoji a few times during this period, and every time it results in three separate posts in the Discover Art section, as shown in the original post.
I suppose I’m done using tagmoji. I’ve seen no proof that it leads to a better discoverability. People are used to clickable hashtags, since it’s used everywhere else in the Fediverse and social media, even though it’s a dark pattern, revealing too much specific meta-information about a user, so they can be targeted by third parties.