I can see how to post from deck builder decks that I have made to gathering, but how do I import from gathering any number of the wonderful decks I've seen posted here?
Good question. How much the solution is worth for you?
A lot. I asked for it a while ago, and there is no solution that I know of to directly import, but you can go and copy it manually, or pm the author of the deck to send you the deck file by email. I think the function should be created. In this matter, I also think you should be able to view forum posts in deck view if you make your device landscape, it would be very useful