My first account on the fediverse was on Beehaw and I was happy with it, but defederating from two of the largest instances gave me a reason to find a new instance. Personally I understand and respect the decision -that is the point of the fediverse afterall.
They had a lot of good communities that will not be cut off from the fastest growing instances which will make things tough to rebuild I think.
IMO it is a systemic problem of lemmy as a whole. Beehaw is closed registration with human verification only. You apply they verify you will fit with their community by reading what you wrote in your application. Then you either get in or not.
Problem is that lemmy.world and sh.itjust.works are open registration… Just like lemm.ee is. So what happened to lemmy.world and sh.itjust.works can and quite possibly WILL happen to lemm.ee as well. It just takes one person using lemm.ee’s open registration to make a few troll accounts and post to beehaw and beehaw will defederate with lemm.ee as well.
That normally wouldnt be a big issue but because beehaw is the highest moderated lemmy community it also has the most used communities. For instance their gaming community is the largest gaming community on lemmy by far… like 5 times bigger than the next biggest one. I dont know if that will change now that they are defederating from other servers…
But the point is… it could happen to this one too.