To stay in Thailand for six months, you must demonstrate that you can support yourself and meet specific criteria.
By definition, applying for an extension for another six months would logically require similar evidence. Why do some people assume it’s as simple as walking in, saying “hi,” and leaving with an approval?
Has anyone considered that this process is also an opportunity for immigration to identify and address those who may be abusing or misusing the system? After all, that’s part of their role.