[dllthomas]

> Is the kind of mistakes prevented by this language extension often made by typical Haskell programmers? My answer is no.

The kind of mistakes often made by Haskell programmers interacting with objects not well managed by the Haskell garbage collector? Yes, absolutely. Whether there's enough Haskell programmers in that situation, I am unsure; quite possibly not, but it includes me and my colleagues, as well as those currently doing the work.