[jamalaramala]

Not all bugs are crashes. It could be a copy text or price calculation.

[thfuran]

A system can break without crashing. Incorrectly processing financial transactions due to a bug in price calculations would be a good example of a serious breakage that may well be worse than crashing.

[fluoridation]

For bugs that don't cause crashes the effect is the same regardless of how you architect the system.