as long as you have a 1 year multiple entry Visa, you can come and go as many times as you like within that year WITHOUT having to buy a re entry permit... however, each time you come in, you can only stay a MAXIMUM of 90 days per entry until your Visa has expired. If you stamp in just before the Visa expires, you can stay in Thailand until the end of the last 90 permitted entry. I'm using the same Visa at the minute, no need to 90 report either. :) hope this helps
Even if you had to pay a swift fee.. the rate would still be better than your bank gives you if you were "recycling" money as income it would still be worth while
If I'd have to guess, I'd say that transferwise have found a solution the fund not originating from overseas to cater for long term stay in Thailand with a recent update Will be interesting to see what happens
Again, varies office to office and having something like an officially registered domicile would make far too much sense for thai immigration consider as an alternative to ridiculous amounts of useless paperwork