The patent strategy which revolves around taxing GNU/Linux carries on at Microsoft. It’s alive and well, it's just 'dressed up' or marketed differently.
http://techrights.org/2018/02/09/azure-ip-advantage-ai-slant/ [techrights.org]
http://techrights.org/2017/12/10/microsoft-is-selling-troll-protection/ [techrights.org]