Okay, this is my first proper post, so bear with me if I'm a little overzealous, not to mention very late. I don't get on line often & have only just caught this thread
Ffred mentioned that some of Ioan's "descendants" may still be about. I'm very happy to confirm he's right.

Not only are we still about, but some of us are in Cardiff. Hedgerose is also part of my cylch.
I've read as much of the Twisted Twig site as I could stomach

It bears very little relationship to the Gwyddon I know & love. It seems to me to be a very diluted not to mention fluffy American take on a Peculiarly Welsh Path. For the sake of all that is sacred, they can't even get the Welsh spellings right. I've asked some questions & there seems to be a suspicion that parts were obtained from an accurate source & the rest made up from whatever seemed likely & available.
There's not much more I can say here. Oaths prevent!