Threadiverse? I didn't hear this name, I think it can be confused with Meta's threads.net. But I don't like Lemmy, and don't want the network to be named after it. For example we don't call Fediverse as Mastodonverse.
As for Mbin, UI looks good, a feature showing similar threads is useful. But it is quite new yet, many important options are missed in the preferences yet.