Holiday is the proper term in most of the English-speaking world for what Americans call "vacation." You're going to just look like a sheltered untraveled American if you think your comment was funny.
, the moderator of this group and one of the most well-known expats for visa advice in Thailand. As he mentioned, he even works for the Phuket immigration office. You look moronic questioning his credentials when he has been around forever helping tens of thousands of people with very good advice, often better than any other expat due to his role working for immigration. You owe him an apology when he is correct that the O-A is a non-immigrant visa, which most definitely is not a tourist visa. It's closer to being a long-term residence visa than anything else. He's been far kinder to you than most people would be when you accuse one of the actual experts on Thai visas and immigration of not knowing better.
that is inaccurate. It is not just visa exempt entries. ALL entries regardless of visa require it to be filled out. But yes, there are a small number of nationality exceptions from some neighbouring nationalities but generally saying All is fine when it is clear the OP is not from one of those. Seems tedious to have to type "unless you are Lao, Cambodian, or Malaysian" every time this question is answered dozens of times a day. Do you really expect the hundreds of times this question is answered to have to name the 3 exceptions?
The TDAC has nothing to do with what visa you have. All foreigners must fill one out for every entry. It's just an electronic arrival card or landing slip and doesn't grant any length of stay and is not a visa.
If you didn't extend your visa in country before the 60 days expired, then you are already on a severe overstay as 90 day tourist visas only grant 60 day stays within the 90 day visa validity period.
Look on the actual DTV group on Facebook for lots of first hand accounts of entries that both had and didn't have issues at various airports. This group doesn't allow me to tag another group so you'll have to search for it in Facebook groups.
Anonymous participant many airlines will ask to see the visa of you don't have an onward/return ticket booked within the 60 day visa exempt period. You have to prove how you will be able to enter Thailand legally for a longer stay.
It would be helpful to know what nationality you are, and what kind of previous entry history you have. If you had previously abused the visa exempt or education visa system to try to stay in Thailand long term, it would make sense for immigration officers to question the legitimacy of your DTV qualifications.