Sentence:  I don't think this is a statement that players are stupid. Not at all. They know what's good. This is a statement that engaging in quests, exploration and <WSD>wall humping</WSD> is an activity with a similar motivation to rattling the bars of your jail cell: You ain't got nuthin better to do. 
Meaning of the word marked with <WSD> tags:  (The act of a character) moving repeatedly against a wall, as if humping it, either intentionally (e.g. trying to find secret doors) or due to a glitch.