It’s very easy to de-anonymize telemetry data, track users across IP addresses, collate with other application’s telemetry data, determine which users are in the same places at the same time, and generally extract a huge amount of data about people, who they spend time with, where they spend time, and what they do there.

Telemetry is unequivocally spyware.

It feeds a firehose of data to the internet, and both data brokers and state actors do absolutely everything they can to gobble it up.