A Well-intentioned Cashback Program Caused an Increase in Fraud-Here's What Happened | HackerNoon
Briefly

The article discusses an A/B test conducted to assess the impact of changing cashback payout schedules on user purchasing behavior. Initially aimed at increasing purchase frequency by issuing cashback earlier, the test instead resulted in heightened fraudulent activities. User feedback indicated dissatisfaction with long cashback processing times, prompting the decision to accelerate payouts. However, contrary to the hypothesis of enhanced engagement, the findings showed that faster payouts encouraged opportunism rather than boosting sales, emphasizing the need for careful consideration of potential outcomes when modifying loyalty program structures.
When we shortened the cashback payout period, we saw an initial spike in transactions, but this also led to a significant increase in fraudulent activities.
The adjustment in cashback timing led to unexpected user behavior; rather than increasing genuine purchases, it triggered opportunistic tactics among some users.
Our experiment revealed that while faster payouts seemed beneficial, they inadvertently motivated certain users to exploit the system for personal gain.
Ultimately, we recognized that modifying payout timings in loyalty programs can have unforeseen consequences that challenge our initial assumptions about user incentives.
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