Expand the "Can I turn off type constraint checking?" beyond just "no"
to "you can do it with a MooseX extension". The shiny new extension
happens to be mine, but also point out that if it doesn't do what you
want it's easy to override the default behavior.
=head3 Can I turn off type constraint checking?
-Not yet. This option may come in a future release.
+There's no support for it in the core of Moose yet. This option may
+come in a future release.
+
+Meanwhile there's a L<MooseX
+extension|MooseX::Attribute::TypeConstraint::CustomizeFatal> that
+allows you to do this on a per-attribute basis, and if it doesn't do
+what you it's easy to write one that fits your use case.
=head3 My coercions stopped working with recent Moose, why did you break it?