I understand. I was just adding another data point from someone who has had IPv6 disabled since before Spectrum took over Brighthouse. I see this issue for a day or two, then it goes away for a number of days, then repeat. I've only seen this cycle of behavior for the past few months or so.I can only tell you what I see, and it's consistent and reproducible. I've been using ipv4 all day without issue, I turn IPv6 on and immediately have the issue.
While I have no problem blaming Spectrum, for me at least, it doesn't seem possible that this is IPv6 related.
On the other hand, since the development of NewsLeecher seems to be interminably stalled while they work on getting the server back to full functionality, I am also quite willing to believe that the server side sometimes triggers this issue, too.