No, ProBoards is not taking down talossa.proboards.com any time soon, but its CEO did put out a call for contributions/donations, which tells me things may be more dire with ProBoards than they are letting on, imho.
The message may be had via https://www.proboards.com/contribute
I am making a tiny monthly donation, and I encourage all Talossans to do their part to make our Witt XI legacy voice heard with the ProBoards staff. That service has been free for all for almost twenty years, but those halcyon days could be coming to an end, imho.
GV, Royal Archivist