The author doesn't seem to realize the MTA has tried and failed to get rid of the bonus. The only reason the bonus still exists is because of political pressure. Therefore, it's unlikely a "dark pattern" by a nefarious public agency that the people need to "outsmart".
As another commented mentioned, it's about charging a full dollar amount (after $1 new card fee) for people paying with cash.
As another commented mentioned, it's about charging a full dollar amount (after $1 new card fee) for people paying with cash.
Sources: http://www.nytimes.com/2012/10/16/nyregion/mta-chief-signals... http://www.nytimes.com/2012/09/13/nyregion/mta-may-eliminate...