[Scheme-reports] Mutable Pairs

[Brian Harvey]

> I still think that
> they help Scheme programmers to write more robust code

I think that, like most teachers and many parents, you choose not to notice
the difference between "help" and arm-twisting.  Basically your argument is
the same as the one that forbids teenagers power tools (or sometimes even
Swiss Army knives).  The two differences are (1) you don't /quite/ want to
forbid them, just surround them with a lot of off-putting bureaucracy and
shaming, like the welfare office, and (2) we're talking about adults, not kids.