I also think the same.
But wait a moment, this section has been existing right from onset and there no limitations on either signature display ads why then jr.member suggesting for the removal of sig ads over here?
Does it means it pains op seeing people who are higher than him or she being paid over here while he earns nothing? I believe this could be the only reason why such suggestions is being raised. As I know it attract more attention to this section since sigs are allowed lot of people could look into section to handle and iron out cases.