On my email that is just publicly used on my Github account I have repeatedly received marketing emails from the company behind Redpanda since 2021 without ever consenting to such and without any way to opt out. Replying to the email that I wish to not receive them has not helped. The newest email from this year has a “Not interested” button, so apparently they have learned a bit. Let’s see if it actually works.

I can not imagine this shady tactics get much love from developers, rather they probably turn away people from trying your product, at least for me this is the case.