Are drones legal in Thailand, or is there paperwork nobody mentions?

They are legal, but not simply. A drone must be registered with the NBTC within 30 days of arrival, and official advice puts the penalty for failing to do so at a fine of up to 100,000 baht, up to five years imprisonment, or both. That is a serious consequence attached to a step most visitors have never heard of. The sourced version, alongside the other rules that catch people out, is here: https://meetlocale.com/guides/is-thailand-safe-to-travel-alone Separately, registration is not permission to fly anywhere: airports, palaces and government sites have their own restrictions. Has anyone here actually been through the registration, and how long did it take?