They know what you do 'offline' (with proprietary software it's standard practice)
Summary: They've had the audacity to call it "telemetry" and pretend that surveillance companies (spying giants) cannot figure out who you are based on IP addresses
We have some reasons to suspect that one of several parties (possibly not in the UK but having connections here), having suffered major and very expensive setbacks, may look to harm the messenger one way or another
Could the FSF not find any law firm that, in addition to talking about or for Free software, does not use .NET, OOXML, and almost everything Microsoft?