There is a fork called Incarnator which sees some occasional commits, but I think it's more of a maintenance project that an attempt to continue bringing innovation. I believe that my ADAPT project has learned all the lessons from Takahe and will manage to bring more exciting features.

Well, yes, but a bridge to Discord could be bringing traffic from order of magnitude more people than we currently have, and we do not have the infrastructure for it yet.

Short of pruning the data every once in a while (and losing all history) there is nothing that can be done to optimize it. It may work as a proof-of-concept or if you want to run on your own, but I really don't think it is a good idea to promote it.

The latter. Any instance that has at least one user following the bridge will have to process and store every message coming from the bridge discord room.

Do you really think this is a good idea? Have you considered the amount of traffic will be generated and the amount of data storage this will require?

So every new conversation thread becomes a new post and every response becomes a comment?

I'd say this is impossible, by design. The main problem of corporate social media is that it is controlled by an oligopoly, and we can not get this much concentration of power in a system that is designed to be distributed.

The world does not revolve around you.

The problems of Corporate-owned social media affect all of society. We need an universal alternative that can be a real threat to them and alternatives like the Fediverse serving only the fringes do little more than act as a "managed opposition".

I am building some solutions to these problems myself

No need to be coy. What problems are you tackling? Where is the code? I agree with pretty much of what you are saying, this is why I started working on Fediverser, how about joining forces instead of coming with yet-another plan all on your own?

How old is TikTok?