Publishing Questions About Cryptocurrency reminded me that I hadn't seen Pantera on Medium for a while. Pantera is an enthusiastic supporter of Bitcoin Cash. I went to Pantera's Medium page and got this message:
"ERROR - 410 This account is under investigation or was found in violation of the Medium Rules".
I noticed that Pantera's logo had changed, but it had also changed on Pantera's Substack account.
Update
Since publishing this post, Pantera's page has reappeared on Medium.