We've had more comments in Disqus about users not being able to create profiles. I set up a test - sent an email from my work email (not heretofore connected with wavewright62 in any way) to webmaster@ , thinking that as a mod I would get a copy, but I didn't. Because I don't necessarily want to bog down admins, I can't recommend that course of action to the general public on Disqus.
Next I tried logging out and attempting to create an independent profile, again using my work identity. That registration failed - I immediately got an 'Error has occurred!'
So far as I know, nothing about me, my ISP, or my IP address, should trigger the anti-spambot protocols - am I correct?