A residence certificate (and thus TM30) is not needed if you have a pink i.d. and thus yellow house book. In that case the whole process starting from getting a medical certificate to receiving your license will take about 2 hours in Bangkok.
" I don’t recall the actual literal Thai wording for it but it’s something along the lines of “Visa for waiting out the term of your life”
The correct wording is วีซ่าใช้ชีวิตบั้นปลาย
I don't think the English translation "retirement" is for PC reasons, but rather that it is short and easy to use. English translations have no legal binding whatsoever anyway.
don't abuse the system at the cost of people who need it. The more freeloaders, the more the system gets overloaded. It's for people who really need it.
The current "number 5" sticker goes from zero stars up to 3 stars.
The zero stars is just the plain number 5. Each step is a 5% to 10% increase in efficiency.
The number 5 as base has its logic, because in 2019 this current system replaced the previous system.
In the previous system, the sticker showed a 1 to 5 rating, 5 being the best. You will still see these stickers with the old system on appliances bought before 2019