I have been told that at the present time your old permalnks/bookmarks are not working.
Discourse is in the process of going through all those links and repairing them so they will once again work for you.
Like the Fight Against Ignorance it’s taking longer than we thought.
But it is progressing and you will be able to use these links again. Just not today.
It’s the same situation as with the spoiler tags and the quote function: all the ones imported to the board need to be “rebaked” to get them to work again. This will happen but again, ain’t no overnight thing.
In the meantime your patience is appreciated.
We are lurching towards betterment and soon this will be your new normal. A bit of a struggle in the meantime … but have you seen any gateway errors?