If I'm understanding 1_800_UNICORN's point correctly, it's more along the lines of 'any company that expects an experienced developer to recite academic details on algorithms'. Certainly my current knowledge of algorithms is very practical and I'm certain I've forgotten much of the academic stuff I learned 20 years ago. You remember that which is useful, forget that which is not (situational, of course) and when a company is looking for the latter, they're unrealistic or they want an academic programmer, which I'm not.