You can get people to do work based on the strength of a personal relationship, sure. I once gave an unexpectedly long assignment to a class of about 30 students, and ended up getting six completed assignments. One was from a student who was just absolutely determined to be &quot;a good student&quot;. The other five were clearly done on the basis of my relationship with those five students rather than because they thought it was a reasonable use of their time.<p>I don&#x27;t think that approach can scale, though. You can&#x27;t maintain that kind of relationship with 50 people; you need them to enforce the norm (&quot;do the work!&quot;) on each other.