@Gl***
I am aware that the MFA and immigration are different departments. However:
(1) Royal Gazette announcement specifically says requirements need to be shown (a) applying for visa (b) for extensions, but not for entry and says entries are unlimited;
(2) Deputy director-general of the MFA has stated that requirements may need to be shown to immigration for extensions (as they are separate and they will determine that) but not for entry, once you have the visa only need passport and visa for unlimited entries in five years;
(3) People have the visa already and have entered with it and no-one has reported needing to show requirements again to immigration on entry;
(4) Other visas it's the same, you need to show to get the visa and for extensions but you do not need to show on each entry.
I'll take all this as indicative of how it's going to work over random farangs on Facebook and their ideas.