No Stinking Mutants

Pretty much every single bug or WTF in our legacy web app is the result of mis-managing or abusing mutable state. I am absolutely convinced that mutation is the enemy of reliable software. This is a good writeup, but I think we need to do more to demonstrate the difference to the average Java-slinging code monkey out there.

I wonder if this set off the voting-ring detector somehow. It seems weird that it's already near the bottom of page 2 when there are multiple submissions with similar point / age characteristics that are in the top 20.

I don't usually complain about the way weighting works here (I think this is the first time), but this is somewhat confusing since the submission is squarely in the scope of HN.

PG: If you happen to read this, could you please clarify what things we ought to avoid when submitting articles & essays so that they're not unfairly penalized?