A core developer quit and forked it to make freenginx, based on a claim of corporate interference in security practices.
This was about 6 months ago and probably what you are thinking of. Its still open source, there doesn't seem to be anything that's come of the issue that was the cause of the split, and nginx is still actively developed.
That's wild.
When I canceled with them (about 4 years ago) I said I moved and they dont service the area, and that was the end of it.
Though I should have suspected Comcast would find a way to get worse.