I presented these ideas at the altmetrics18 workshop. You can read a slightly more formal version of this blog post here.
These five principles are my answer to some of the difficulties and problems I have observed in the past couple of years. In that time I have been collecting the kind of data that altmetrics are built from, and talking and working with researchers. Altmetrics data is derived from the community. I think that community should continue to be at the heart of every step.