Why are some Thai immigration offices using the correct terminology for "Extension of Stay Permit" instead of "visa extension"?

A user reports that the Immigration office in Buriram has started using the correct term "Extension of Stay Permit" instead of the commonly misused term "visa extension." This change has been positively received, especially compared to experiences in other regions such as Sisaket where the incorrect terminology is still used. The user also notes the efficiency of immigration services in Issan areas, highlighting quick processing times.