It is great for many people. Just be sure you meet the requirements - as in 500k in savings. And be aware you can only apply for the DTV outside of Thailand. If in your home country only or in any foreign country is not clear yet.
YES we know. It is a MULTIPLE entry visa. 180 days per entry. As many entries as you want in that 5 year period. Otherwise it would be a Single entry visa - which it isn’t.
Similar here. I will write a letter confirming my employment as MD (in my own company), while also mentioning the official court registration number of the company.