What are the consequences of forgetting the 90-day report before a domestic flight in Thailand?

The original poster is concerned about forgetting to do the 90-day report for their visa before their upcoming domestic flight to Krabi. Responses from the community suggest that while there may be a fine for not completing the report, most do not anticipate issues at the airport. Some comments indicate that the airport staff typically do not check the 90-day report during domestic flights, and the potential fines are minimal.