Thanks for your feedback, @Nick!
Yes. While the app’s primary (or initial) target user group is people in academia, the app will hopefully work for many different use cases, basically anyone who reads & annotates PDFs and who wants to further work with the highlight annotations.
You could also ignore the PDF-related features, and simply use it as a note-taking tool to create a network of semantically rich and inter-linked notes.
Btw, in the distant future I’d also love to support annotation of archived webpages. But I have to focus on the basics & its primary use case first.