I agree with the moving people, refusing coverage after repeat usage in one location but the last time that was in Congress it failed to pass and minor reform was rolled back when they realized how many people were going to lose coverage.

Most of the initial premiums are based on 100 year flood plain maps based on recent years of rain (which may not have been typical), assume that rivers are static objects that do not change course, assume that coastal sand beaches are static and not dynamic.

By letting people stay in places that flood repeatedly and removing the risk for home owners/purchasers, the NFIP incentivizes building and rebuilding in areas that flood. According to this article, there were 37000 homes at the time of writing that had flooded four times and gotten at least 5000 in coverage payout (I could be wrong but last time I checked that is the most I could get in earthquake insurance when I read the annual offer around 2000 from my homeowners insurance). The NFIP is underwriting pretty well off people's lifestyle of living on a beach/river front/bayou. https://www.seattletimes.com/business/flood-insurance-rebuil...