In answer to your "criticism" of the lump-sum Bank Deposit Method: If, like my wife and I, 65K x 2 or 135K Baht per month is FAR more than we need to comfortably live on in (we reside comfortably in CM on only about 30K Baht per month), then we would still be "tying up" in a Thai Bank all that extra money coming in continuously from the monthly transfers. After approx. 1 yr, would then "tie up" even more than the lump-sum Deposit Method.
fyi -- CM does not accept "Screenshot" provided by your Hotel/Residence, as documentation for any Extension. It IS satisfactory evidence you complied, BUT CM will require you to "convert" that to a hard-copy TM-30 Slip/Receipt, which can be done in the small office in the rear of the Airport Immig. Office.
Assuming "lump sum" means the 800K in Bank Deposit Method; and "transfers" mean the 65K Monthly Method, I can only attest not required for the Bank Deposit Method. I also wanted to clarify, that when you say Account has to be "in your name only", CM also has interpreted that to include ok for Joint Accounts (at least insofar as Married Couples).
CM does not require Proof of foreign origin of funds; and also permits use of Joint Account -- at least for married couple -- with double the amount i.e. 1.6Mil Baht.
100K "somewhere in their accounts"?? NOT what the Rules require -- must be in A BANK ACCOUNT for at least 12 mos. prior. So, TODDY, let me explain it to you again: If my "tying up" a mere 800K Baht (i.e. about USD$24.K) at 1% interest is so financially "ignorant" as you have said, then what should we say about your tying up USD$100K in A BANK ACCOUNT (even if earning a little more currently than Thai -- i.e. avg. Aussie Bank Account paying 4%), when as you previously boasted you can earn at least 11% p.a. ? Even if I could consistently earn same on my investments (which I don't claim), my lost opportunity cost would be $24K X 10% lost interest= $2,400. Yours, on the other hand, would be $100K X 7% lost interest= $7,000. Assuming you can understand simple math -- a pretty big assumption, then it is pretty obvious who is more "ignorant" and the bigger Embarrassment! And, of course, that doesn't even account for your having "tied up" another 50,000 Baht in up-front LTR Fee. 😂