Yeah 4x entries are given but rarely.. I will updqate you next week as I am hopping down to Panang to see whats happening down there this week..
I think the terminology for a double entry / triple entry or quad entry visa would all qualify as 'multiple entry' visa's
Agreed with you comments about leaving every 90 days on a multi B aif you dont make the full list of qualities for a work permit setup but really if you leave every 90 days anyway why have the hassle of the taxes you must pay.
Looking for work or investigating the business climate for your overseas business to invest into Thailand were common and accepted.. I hear they still may be accepted in your home country but I am not going back to Europe just to sort a visa out.