It looks like it hadn't been subscribed to by anyone on this kbin. I just subscribed to it for and it now exists here. No content come through yet, but hopefully it will get some soon
edit - yes, I know it says it belongs to ernest, but that's the way things work when the local copy is created.
To answer your question directly - I searched in kbin for [email protected] (or was it @[email protected] ?) - and then hit the subscrivbe button