On: “I saw that you spun up an Ubuntu image in Azure”

[falcolas]

If this is so common (or valuable), why am I not charged for an image of Ubuntu optimized for Docker when I pull it from Docker hub?

Or when I download the various usage-optimized ISOs from Canonical's own site?

This is exceptional, and in exceptionally poor taste.

[mr_cyborg → falcolas]

This is exactly how Docker works too - they recently rate limited anonymous accounts, and by signing up for the free plan you agree to very similar terms and conditions in return for a higher pull rate limit.

Source: https://www.docker.com/legal/docker-privacy-policy

See Section 3. Use of Information Collected