Interesting. When I look at Joscha's background and work[1][2][3], he seems pretty credible to me. Is there anything specific he's said/done that puts him in your "other" category?
The only thing I know him from is his CCC talk, which is definitely interesting, even dazzling for all the ideas it ties together, but in the end it isn't really presenting anything new, so to me it is a bit of intellectual popcorn, like a TED-talk. I don't know anything about his actual research (which I think is unrelated to most of what he talks about) even though I did my PhD in an adjacent field. I believe as a researcher/teacher he is not in the same category as Peter Norvig and some of the other people you mentioned.
Gotcha. Sounds like we may have a difference of perspective. I am not familiar with the CCC talk you speak of, and am mostly familiar with Joscha's work (to the extent that I am, which is not "deeply" so) from his work on MicroPsi[1].
[1]: https://en.wikipedia.org/wiki/Joscha_Bach
[2]: https://scholar.google.com/citations?user=Q_yeuCUAAAAJ&hl=en...
[3]: https://www.amazon.com/Principles-Synthetic-Intelligence-Arc...