Top ten reasons to not share your code (and why you should anyway) | Software Sustainability Institute

"I am an advocate of sharing the computer code used to produce tables or figures appearing in mathematical and scientific publications, particularly when the results produced by the code are an integral part of the research being presented. I'm not alone, and in fact the number of people thinking this way seems to be rapidly increasing, see for example [1–3, 6–8, 10]. But there is still much resistance to this idea, and in the past several years I have heard many of the same arguments repeated over and over. So I thought it might be useful to write down some of the arguments, along with counter-arguments that may be worth considering...."