For example, in the src/core directory there are about a million files, of types .txt, .cc, .cxml, .xml, .old, .py, .sh, .prototype, .csc, .pdb, .moe, .grep, *.fbp, etc., and many of them have mysterious names like "tf.csc" or "v.txt". And a lot of the files seem to have nothing to do with common lisp or C++, and contain mysterious 1 or 2 line code snippets or shell one liners.
Honestly, it's just a terrible first impression. Are there any plans to clean it up and make it usable by other people?
Edit: And perhaps more worrying, there are things like this https://github.com/drmeister/clasp/blob/master/src/clbind/cl..., where there's a copyright notice, and then immediately below it an older copyright notice to somebody else.