> If anyone in the "I tried Matrix and it was awful" camp could give detailed feedback (either here, or on github.com/vector-im/element-{web,ios,android}/issues) then it would be genuinely useful for prioritising our work. At the moment the vast majority of negative feedback on HN has been "it sucked" without giving a hint of what actually went wrong.
Your two modes of suggested contact (HN, GitHub) ensure only a certain type of user will contact (both require tech skills and a login). If there really are UX issues, you might want to encourage different types of users to give feedback (and if the fear is that the feedback won't be detailed/useful, maybe a guided form can help).