Thats right, reddit is removing its horrible implementation of custom emojis, in its ever ongoing journey to lose all feature advantages it has over lemmy. Now we only need them to remove post tags and user flairs, and lemmy will be superior in every single way.
They are really deadset on removing every single community customisation out there!
People smarter than me will need to weigh in on the scalability of Python vs Rust, but if that’s not a concern then that may be what happens.
Probably requires something like Lemmy.World doing a migration, though. Lemmy as a software still has the highest pull by way of being the the predominant one. That’s just how people work.
Also Piefed needs more apps. The huge variety of Lemmy apps is a massive draw at the moment.
It’ll happen when instance owners decide to do so. But I don’t see it happening right now. But I get the feel that most would like to get away from the lemmy devs long term. But for now they all seem to favour lemmy, so it is for them to decide when its ready.
What they can (should) do is support lemmy’s api, so you can use lemmy apps with it.
The language something is written in usually doesn’t matter much, database stuff and i/o are the main performance bottleneck. Instagram and threads serve a massive amount of people and they’re written in python.