Here are 2 links to some of my own post’s from the past (I saved some of these as .maff files before the migration to BA 2.0):
it’s post 262 & page 14 in the old BA - post 258 in the new BA
it’s post 268 & page 14 in the old BA - post 260 in the new BA
But I have not found any old post link to work yet. It opens the correct thread, but it shows post 1.