It seems like many posting there are not aware that this repository/bug tracker is not an official channel anymore -> maybe posting an automated comment in all issues with recent activity or locking them could help avoid confusion? If you arrive via search, you don't see the notice in the main repository description.
When googling for the fast-forward feature one of the top results was this GitHub thread, which had quite a bit of activity fairly recently: https://github.com/gitlabhq/gitlabhq/issues/2324
It seems like many posting there are not aware that this repository/bug tracker is not an official channel anymore -> maybe posting an automated comment in all issues with recent activity or locking them could help avoid confusion? If you arrive via search, you don't see the notice in the main repository description.