1. You don’t have to touch button as there is sometimes a visual (e.g. free games banked on the bet deck), banked coins in GE, bubble in OMG, etc Especially the progressive jackpots that are plain to see.
2. A scavenger is someone who needs to find abandoned “equity” to get a play positive. In contrast, an AP does not need abandoned equity to make money. In plain English, if you need to scavenge off the abandoned equity (whether you touch buttons or not), you are a scavenger not an AP.
I am a scavenger and very proud of making money from abandoned equity; I don’t call myself an AP when I scavenge.