Would gold be valuable if anyone could create it at will? Sure, a few people would like the colour and the way it shines, but most would be indifferent. A lot of these things were cool because we knew they were difficult and had technical challenges to overcome. Now it's easy, I just don't care.
In this case the idea here is ‘rewrite tsc in Rust” not exactly earth shattering. If somebody hand wrote that, then they could have gleaned some new insights about Rust or Typescript or something which could be interesting, but in this case they just had an LLM do it and didn’t even read the code. So it’s a big who cares. If it gets adopted by the official compiler team, then I’ll be interested. But right now you would be an idiot to use this for anything mission critical.
When people post AI projects with genuinely new/interesting ideas, then I am interested.