With the risk of being seen as a grumpy old man, may I point out that this group has ended a long time ago:
Ending date would be June 1, 2018
As long as the owner of the group think it is ok to restart, then all is well, but do check the "info" before venturing into old groups 🙂
(just to keep the number of active groups down a bit - I have just "left" 5-10 groups that has ended)
When all that is said this is indeed a very interesting item, and dios are always something that catches the eye..