User blog comment:Skuldomg88/Extracting gift information from the game/@comment-2194058-20180626200801/@comment-2194058-20180626234117

I think the problem arises from the fact that the Gift_Tag ID is 0, not 4 like Animal Feces. If that's the case, nobody in the Favor_Hate column will have a Gift_Tag ID of 0, which leaves Wasted Food as neutral. Animal Feces has a Gift_Tag ID of 4, followed by the 55 TagList_ID.

Also gave it to Liuwa, which gave him +1 RP only, so that proves my theory at least.