Ask Lemmy

There are more downsides than just that though.

1. Small userbase so less prioritization for e.g. funding or direct code contributions
2. Its UX is confusing, e.g. there are both upvotes and "other" upvotes, called Increases iirc, and then the same for downvotes too, although ironically actual "votes" aren't the things that influence sorting of results, plus one of those (perhaps Increases but not Reductions?) you can see who did so for an item of content, but not the other.
3. Its UI seems to me to be far more geared towards the blog post side of things, and a lot of the time post thumbnails and titles and such are rendered in such a way that don't make so much sense for Lemmy content. e.g. Lemmy titles (such as OP here) are significantly shorter than let's say the title of a news article, which causes a heck of a lot of wasted whitespace.

There is value in optimizing for Threadiverse content, whereas Mbin mostly optimizes for Mastodon and the Threadiverse is an afterthought. As others said, PieFed also federates Mastodon posts if someone tags a community. So it is not surprise that optimization is the opposite there, with the Threadiverse as primary and Mastodon as the afterthought.

PieFed also supports Mastodon, and is continuing to improve on it. You can now cross-post Mastodon, PM Masto users, etc. from the most recent updates which improves on its already existing mastodon integration.