Humans have a natural openness to reciprocity. It’s a time-honored survival technique, one that allowed us to live together in villages for millenia. Someone who doesn’t reciprocate is less likely to be protected by his peers, right? Not only have we been taught reciprocation since birth, but it feels right. It’s baked in.
The problem occurs when the trading of favors become mercenary, when alert individuals start manipulating the system for personal gain. Suddenly, every favor is suspect, measured and not at all generous. Suddenly all the likes and links and blurbs become nothing but currency, not the honest appraisals of people we can trust. It means that bystanders have trouble telling the difference between honest approval and the mere mutual shilling of traded favors.
