I assume you're asking specifically about discussing telemetry and open source, not only the features. We try to be super open about collecting the data, and published an extensive list of things we report. Most of our users don't mind. Those that did, messaged us directly about it and shared their feedback. Some even decided to trust us after exchanging emails, talking to the team and seeing us improving the messaging based on their feedback.
Regarding open source - it is not just a vague promise. We do have plans on doing it, many team members joined the company because they want to contribute to the community. We actively discuss this topic with our community on Discord and Github. I'm personally super excited about our UI framework, and can't wait until we open it up to other people (we recently added some a11y support, which is super cool and not as common among the Rust frameworks). Here's the github discussion for more context: https://github.com/warpdotdev/Warp/discussions/400
However, we understand that our current mode of operation won't (and honestly, can't) please everyone, so it's not surprising that there are people who don't agree with this approach.