It's a bit chicken and an egg situation: if one has a degree, nobody ever asks about it except the very first job after graduation. So any course in addition to your normal degree will matter more because of what was learnt rather than the certificate at the end. Now for those without degrees taking coursera courses hoping they'll land a job,it may take more than just 2-3 courses, especially for the first job. Also,it depends a lot on the market: certain countries are obsessed with certifications and will be very happy if candidates can provide them,so cultural context can't be dismissed completely.