lemm.ee has shut down at 00:14 UTC.
unfortunately I realized too late that I have had hundreds of saved links to posts and comments from there, so I did not have enough time to save them, but anyways it is interesting that maybe a third of the post links I could try were dead. I think linkrot is happening much faster here than on reddit, even if just counting deleted posts.
Not enough admins, and those there were burnt out.
Furthermore, I thought that they were supposed to be a temporary instance for the reddit influx as well.