[Guvante]

Likely that is referring to the fact that when it crashes, it crashes in a way that can be interesting to debug. I took it as a comment about development vs one about production.

[emilv]

"can be interesting to debug" sounds scary :-)

[dons]

Lazy languages don't have equivalent call stacks as strict languages. However, GHC lets you get a stack trace via profiling. E.g. +RTS -xc flag gives a stack trace.

[enigmo]

The actual evaluation stack (re: GHC w/ DWARF symbols) is also quite useful for debugging and doesn't need a profiled executable to work.