With 4chan gone, who knows when /mlp/ will be back. In case anyone not in the know sees this, here are a few alternatives were anons are gathering as of now, I don't expect Hiro to fix his shit soon:

https://nhnb.org/fim/catalog

https://mlpol.net/mlpol/catalog
https://mlpol.net/poner/catalog

Seems like nhnb is where the majority of anons are (at the moment), but mlpol has less posting restrictions and are less anal about their rules