When one is being ignored, the complaint is, "What am I, chopped liver?" supposedly from the nature of chopped liver as a bland side dish in Jewish cuisine. This is frequently the case here when someone posts the answer to some burning question and the thread goes on for some time as though the question hadn't been answered. Then someone else posts the same answer and everyone comments on the appropriateness of the answer. The person who had posted the answer originally might comment on being chopped liver.

One man's chopped liver is another man's pâté.