> YOU are not the target of said telemetry. Their frickin' servers are.

Extremely naive claim.

What data do you think is included in their traces/metrics/logging with this telemetry tool? Do you know more of this?

You should know that a single blogpost doesn't tell you the entire story. What data are they collecting with this? Are these metrics/traces/data transparent? if not, why has GitHub not made this transparent?

Again, Am I able to "opt-out" of this telemetry on GitHub?

If I cannot, then they are spying. pure and simple.