I just posted a tip on Reddit - while the old Big Finish website is online you can still access your wishlist, and then use TARDIS Guide to save everything on your list, in case it disappears again!
If you use Reddit, please upvote it 
hoping it will bring in new members.
I’ve also updated the profile page to have a better view of Collectables and Saved Collectables.
Also, do you have any feature requests for the wishlist feature? Here are some future plans, but I’m not sure about timings yet:
- Multiple lists
- An email alert when something on your list is released
- An email alert when something on your list is discounted