[mwcampbell]

Coding on a whiteboard is also impossible or infeasible for candidates with some kinds of disabilities (e.g. blind). Sure, you can make an exception for those few candidates, but I suppose the fact that you even have to make an exception to your normal process for a particular candidate might bias you against that candidate.

[danielweber]

There are lots of accommodations I would need to do for someone who is blind, or deaf, or missing his hands. (I knew (through association) a developer who had hooks for hands.) The fact that you need to put some changes into your recruitment process for disabilities doesn't mean your recruitment process is necessarily broken.