The what? I don't remember a comic called "dead metaphor", if you meant that literally. I think I still have a copy of every comic I've ever made.
I don't think I even remember seeing that comic before. It looks like a ComicDish comic? That was a fairly big comic host like DrunkDuck or ComicFury run by other people. I wouldn't be surprised if there were a hundred comics or more there. Pulse was just one of the comics using the free hosting. It shut down 4-5 years ago without much warning, and I didn't have any control over it.
I was just a user of the site, and I don't have any copies of any comics other than the ones I made myself. There's probably a lot of good comics that were lost.