Firstly, thanks to @Mike Lister for compiling that document (but I wonder if you are regretting it now ).
Secondly, although it is being said that we have almost 12 months to properly understand all of this, I don't agree. There might well be tax planning measures which some people might be able to put in place if those people could be certain of the law.
Thirdly, the issue of co-mingled funds must surely raise its ugly head at some point. For example, you have a bank account in your home country into which you pay your pension, rental income, dividends, capital gains, etc. and you bring money from that account to Thailand. What is the nature of the funds remitted?
For some people, taking account of the second and third points, it might be advisable immediately to freeze any co-mingled account, and have future monies deposited in brand new (overseas) accounts - possibly with an account for each source of income/gain.