The Register did a good job describing the dichotomy between the product business and the tech side of the business here, related to a previous open source project Yahoo published (disclaimer, I run the open source process at Yahoo) https://www.theregister.co.uk/2017/03/23/yahoo_tensorflow_on...
"Over the decades Yahoo! has contributed substantially to the greater good, publishing its own code as open source.
Arguably Yahoo!’s greatest legacy once it is a division of Verizon will be big data, after one of its engineers – Doug Cutting – wrote an open-source implementation of Google’s MapReduce that became Hadoop. What followed was an entire ecosystem of startups and projects crunching data at scale – Cloudera, Hortonworks, MapR to name three in a market some calculate will be worth $50bn by 2020."
"Over the decades Yahoo! has contributed substantially to the greater good, publishing its own code as open source.
Arguably Yahoo!’s greatest legacy once it is a division of Verizon will be big data, after one of its engineers – Doug Cutting – wrote an open-source implementation of Google’s MapReduce that became Hadoop. What followed was an entire ecosystem of startups and projects crunching data at scale – Cloudera, Hortonworks, MapR to name three in a market some calculate will be worth $50bn by 2020."