Nice article! Two thoughts on the issue of grammar/spelling mistakes:
1. The anecdotal argument: i know a great developer, very detail-oriented, math/stats genius, great team player, elite company background. But he's dyslexic. Let's not hope you would apply your filter there.
2. Great teams need a balance between detail-oriented and not so detail-oriented folks. I know quite a few excellent programmers who can get lost in the details. People with less focus on the details are often the more visionary ones, the ones with the big picture. Truly great people can switch between the two, but they are rare.
1. The anecdotal argument: i know a great developer, very detail-oriented, math/stats genius, great team player, elite company background. But he's dyslexic. Let's not hope you would apply your filter there.
2. Great teams need a balance between detail-oriented and not so detail-oriented folks. I know quite a few excellent programmers who can get lost in the details. People with less focus on the details are often the more visionary ones, the ones with the big picture. Truly great people can switch between the two, but they are rare.