I will get a NonO based on retirement before I come back in Nov for sure. I do wonder like you if my long time working here is now going against me. But they clearly knew on my arrival on day one I planned to stay 5 months Nov to March. Probably from my flight bookings. That may also have been an issue but it wasn't last year.
if you are not a member already join the Thai Visa Advice group page on FB. Just read all the stuff there over a few weeks about all the Imm problems nowadays. Follow a guy called Tod Daniels or any of the moderators there. I learnt all my knowledge from them. They are well on top of Visa info
just posted my story in reply to Todd McGowan. I came back into Thailand at Nong Khai border with no hassle at all. I flew to Luang Prabang and planned to fly back but was advised not to do that as I had been grilled 3 times already. Nong Khai is the easiest border by far. But next year I will get a NonO visa for sure.
here it is then. Lived/worked here 17 years until Covid came. Went back to Ireland for 2 years. Came back Oct 2022 on SETV +30 BORDER BOUNCE 30 + 3O. No problems at all.
Came back Oct 2023 planning to do the same thing again. Grilled on arrival at Suvarnbumi told u are not a tourist, u cannot stay 5 months on SETV +30 border bounce +30 +30. Grilled flying to Laos and on arrival in Laos. Told do not do this again. U are not a tourist if u only stay 3 nights and go back to Thailand. Things have changed big time Todd. My travel history was really good.