We've built a platform that helps people diagram, explore, and share the complex systems Donella talks about. Her work has been a major influence on Kumu and we even have a quote of hers on the manifesto.
Your linked manifesto shows that you care about similar issues to Donella Meadows and the OP, but doesn't shed any light on what Kumu is or why the audience would be interested in it.
I had to browse to your front page to discover that you appear to make a diagramming tool for causal loop diagrams along other things, which is relevant and potentially useful to people interested in systems thinking. I've bookmarked it and will try it out sometime!
Your follow-up comment protesting the downvotes was a lot more informative than the comment being downvoted :)
It's also almost always an error to comment on downvotes themselves on your own comments or posts.
I thought there was a general guideline against submitting employment posts, though I can't find that in the HN guidelines or FAQ. Either it's mentioned elsewhere, has changed, or my weed's too good.
As for the response -- I'm commenting on what I've observed over years. Some forms of more direct promotion seem to provoke the negatives. Sometimes I agree, sometimes not.
Just trying to 'splain.