An anonymous reader writes: There's a persistent bias against older programmers in the software development industry, but do the claims against older developers' hold up? A new paper looks at reputation on StackOverflow, and finds that reputation grows as developers get older (adjusting time-on-StackOverflow), that older developers know about a wider variety of technologies, and older and younger developers seem to be equally knowledgable about most recent programming technologies. Two exceptions: older developers have the edge when it comes to iOS and Windows Phone.