For corpos, I view things the opposite way: Never attribute to stupidity that which is adequately explained by malice.

For corpos, I attribute it to BOTH. They're malicious AND stupid.

I like to point out that sufficient stupidity/ignorance can be indistinguishable from malice. Consider it the impact of people living within their bubbles or the result of enormous blindspots.

That's a really great guideline ... if you want to help out malicious people. Not everyone deserves the benefit of the doubt.

Always said with the implication that whatever happened can be "adequately explained by stupidity"...

Why not