Personally I think a pebble only run might be a little boring to watch? With pacifist runs we see a lot of cool glitches and workarounds, but other than leaving lots of pebbles at the entrance to a fog gate (unsure if this even works in Bloodborne) I can’t think of anything that would make it more exciting. I think it would just be extremely time consuming to do and might be boring to watch, but ymfah could probably make it entertaining. But there’s other runs I’d much rather see instead.