The maintainers that wrote those tests will have experience you won't get out of a rewrite. I think this is also where the real work is. A rewrite is one thing

The maintainers that wrote those tests will have experience you won't get out of a rewrite. I think this is also where the real work is. A rewrite is one thing, that you can show off with a flashy blogpost. The maintenance, for years to come, won't be of that nature yet it still requires as much work.