Is there an actual audience for this...

The Mignolaverse.

You didn't read any of those comics.

Hellboy and Black Hammer exist

Currently? Yes.

All time? Not even close.

I read them when they came out.

The Youngbloods are talked about a heap in the early issues of Spawn.

Right, right, that's what I thought. So McFarlane is full of shit

Time for some classic Image

youtube.com/watch?v=WaJhpqAWjuE

So do you currently read it? If so why do you enjoy it?

And I think First Comics had some crossovers between their titles too.