I had no idea this issue had been identified. While I find this tool very useful, the project is seeming rather questionable to me now.
19 points
And even the blobs in the first point there are source and build instructions in their respective folder.
No it is not. It is supposedly the built result based on the instruction provided. If they can just provide that instruction, why not provide the source as well?
The issue thread also highlights the stubbornness and hostility of the project maintainer toward possible contributors.