Or #7 the programmer who is too cool to use modern, stable, popular tools that would be perfectly adequate for solving the problem. Instead insists that the te

Or #7 the programmer who is too cool to use modern, stable, popular tools that would be perfectly adequate for solving the problem. Instead insists that the team write everything in unproven fad technology XYZ - then disappears when he/she gets bored in 3 months, leaving others to maintain a code base written on a abandoned platform.