82670d1d_ted_by_Feature_Usage_Reporting__Why_the_data_is_collected
[Data collected] Hashed IP address [What the data includes] Your IP address is a number that uniquely identifies your computer or organization on the internet. We hash this number (a form of irreversible encryption), so that the address can be used only to identify which reports come from the same computer(s), without it being possible to know which particular individuals or organizations the reports are from. [Why the data is collected] 
So that developers can exclude computers used for development and testing from the results. So that it is possible to investigate whether some companies or individuals use certain types of feature more commonly than others.
SmartAssembly - Data collected by Feature Usage Reporting
Why the data is collected