IPs are PII. You hit the server, and your anonymity is breached.
I would argue that users can't inherently trust the average developer anymore. Ideas about telemetry, phoning home, conducting A/B tests and other experiments on users, and fundamentally, making the software do what the developer wants instead of what the user wants, have been thoroughly baked in to many, many developers over the last 20 or so years. This is why actually taking privacy seriously has become a selling point: It stands out because most developers don't.
If you take the next step: “do not use software from vendors you don’t trust,” you are severely limiting the amount of software you can use. Each user gets to decide for himself whether this is a feasible trade off.