Well, I have used to assist in obtaining U.S. Passports for very urgent/emergency situations (expedited same-day issuance) in order to obtain an appointment for entry to apply for Urgent, Expedited U.S. Passports at federal U.S. Passport Agencies (within the U.S., such as at Los Angeles, Miami, Atlanta, Houston, etc.) and the federal U.S. State Department Duty Officer that you must speak with over the telephone does look up the PNR (Booking Reference #) for those "dummy tickets" "onward travel tickets" as legitimate....
in addition, you can look up, on your own, those tickets/reservations directly on the respective airline's website....
Look, for the vast majority of tourists on a short visit to family and staying with such family (short visit = < less than 60 days tourist visa exemption), and not needing services of, or interacting with the Thai Immigration Office, then not really practical to do a TM.30 Notification, even though it is required by law for anyone staying more than 24 hours at any one location....
However, cannot feign complete ignorance as they specifically asked a question here in this Facebook Group, so there are cases where there are Thai Immigration Officers activiely checking, such as the many cases in Nakhon Si Thammarat for failing to file TM.30
just go by exactly as printed in your passport and also looking at the bottom of the photo page within the Machine Readable Zone (MRZ) will tell you whether to put a space or not as no hyphen/dash are allowed in names....
Because of Thai National Day celebrations, expect even the Visa Section at the Thai Consulate to not be processing visas at full capacity.
For instance, this past Monday they held a grand reception in the evening, so expect that the Consulate probably were working more on National Day celebrations
It is at the discretion of the Thai Revenue Officer or Thai Customs Officer if they determine if one who holds a Destination Thailand Visa (DTV) has a domicile in Thailand or not....