Other people are seeing failed proofs, but I don't see them.

On my end (and publicly on the website):

and on their end:

keybase id smcquay                                                                                                                                                            
▶ INFO Identifying smcquay
✔ public key fingerprint: 15A9 F2D3 0626 B50B D74F B22D BB74 BBB7 45A3 6371
✔ admin of mcquay.me via HTTPS: https://mcquay.me/keybase.txt [cached 2018-10-02 14:35:54 PDT]
✔ "smcquay" on reddit: https://www.reddit.com/r/KeybaseProofs/comments/8tupat/my_keybase_proof_redditsmcquay_keybasesmcquay/ [cached 2018-10-02 10:27:11 PDT]
✔ "smmcquay" on facebook: https://www.facebook.com/smmcquay/posts/1760625604018676 [cached 2018-10-02 10:27:11 PDT]
✔ admin of DNS zone mcquay.me: found TXT entry keybase-site-verification=YdV_lVsKbGLtci7V5SRSahy83cJT8pPhizZI-WdamQU [cached 2018-10-02 14:35:54 PDT]
✔ "smcquay" on github: https://gist.github.com/083515b57e5a0b9b61a1eba573165415 [cached 2018-10-02 10:27:11 PDT]
✔ "smcquay" on twitter: https://twitter.com/smcquay/status/1022370356416274432 [cached 2018-10-02 10:27:11 PDT]

keybase verify seems to hang indefinitely.

Start by reproducing the reported behavior with keybase id smcquay and keybase verify, comparing the reporter's output with the screenshots showing failed proofs. Trace the verification path from these commands and determine why proof failures are not visible locally or why keybase verify hangs. Done means failures are reported consistently and verification completes.