It's worth noting that there have been some high-profile cases of legal action being taken against GPL violators, such as the BusyBox lawsuit in 2007, which resulted in a settlement requiring the defendant to comply with the GPL and pay damages. However, many GPL violations are resolved through non-legal means, such as negotiating a license agreement or reaching a settlement outside of court.
But likely this will just cause minor reputational damage among HN-types and have no real consequences.
But likely this will just cause minor reputational damage among HN-types and have no real consequences.