Just going to drop this info here.
I was in Thailand for 3 months in 2022 September- Mid December - came back in January and since then have done 2 border runs with extensions each time. Now I just flew to vietnam and flew back in the same day to get another 30 day exemption - I was taken to the side office when going through Thailand immigration. They were asking questions and basically said, get a ED visa or a Tourist visa OR ELSE. I told them I had read that the border runs are limited to two times per calendar year, but I thought flying in and out was essentially unlimited. That is not the case.
Anyone else having similar experiences?
TLDR : Answer Summary
The original poster shares their experience of facing inquiries from Thai immigration after attempting multiple border runs to extend their stay. Despite previously reading about some limits on the practice, they were informed by officials that such methods are no longer tolerated. Commenters highlight that frequent border runs may lead to interrogation or denial of entry as immigration enforcement tightens for those not using appropriate visas. Several users advise obtaining a long-term visa to legally remain in Thailand instead of relying on tourist visas or border runs.