I know quite a few people will be rejoicing, but there will also be the refugees. For a while, many people viewed NZBMatrix as poisonous to the NZB community. Merely because copyright trolls liked to use it too for takedowns.
If you’re here, and a refugee, you already know what indexers you need to get on. So it’s just a matter of joining IRC or some forums and trying to network. But until you can find an invite or NZB.su or DogNZB open up registrations.
But there is one alternatives. Simply, welcome to the world of searching headers.
Find the release name on Orlydb and then search that exact string on Binsearch. Make sure that the file sizes match up and you should be good to go.