Hi Ben,
Thank you for your kind words and suggestion. I’m happy to know you like it.
That’d be a big change for Inkdrop and I need to understand how backlinks work and how people use them for their note-taking.
I checked out Obsidian and found that it has a dedicated large pane for backlinks.
As they say, it focuses on interconnecting your knowledge.
On the other hand, Inkdrop was meant to be an alternative to Evernote for programmers in the first place and I am basically happy with it.
So, there is a significant difference in concept between Inkdrop and Obsidian.
Supporting backlinks would require the app concept to be changed.
Besides, it looks similar to Evernote’s Context feature and I felt it’s great, but I rarely found it useful personally to be honest in the last few years as a premium user.
So, I think the feature strongly depends on personal preference.
In terms of UI, since Inkdrop focuses on its simplicity, adding more big features basically makes the UI more complicated and hard to use. As one user already complained that the desktop app UI looks noisy:
I kind of agree with him and would like to clean it up sometime soon.
So, at this point, I don’t feel like supporting backlinks.
But if you think adding it is simple and easy, you can create a plugin for it 
Thanks again for letting me know your thoughts!