First, don't fish for pike with ultralight/light equipment including thin line. Second, always use a strong, bite-proof leader. In my opinion it's irresponsible to fish for pike knowing that you'll get bit off.
Now if you're going for smallies or walleye ans using commensurate lures and you accidentally hook into an Esox and then get bit off, that's another thing entirely.
But still, that was comforting to read.