No offense Twist, but when something is mechanically possible using skills/spells/talismans/wands/scrolls/magical items IC, then it really takes someone out of character to then try to discern what the coder/author might have intended 10-20 years ago and alter their behavior accordingly.

I can understand fixing said issue if it came to your attention and you knew the intention of said area author, but dinging someone for not properly divining intent? That pretty much is telling the players that innovation and thinking outside the box with the knowledge we've accrued over years of play is against the rules.

I've never gotten such a weapon that I can recall, but if I put together a team to weaponbreak/stoneshatter a weapon, got a mind control thief to make the mob quaff a potion of ashes to flame (to change it from good to evil), then have the mob try to wield the -Evil weapon so it zaps him and he drops it, then use my fist of stone so I can pick it up without getting electrocuted until I could ground the weapon on the spike of ages, I'd expect a reward if anything.