' What prevents folks to stay 179 days in Mexico and 179 days in Costa Rica?'

costa rica visa is 90 days maximum for starters

'expats' are very entitled; they want all the conveniences of a 'third world country' (they will call it 'shithole' when their n-th consecutive entry is denied) they want all the cheap rent;services;food ; they want to use the roads; sidewalks; beaches; national parks; police; emergency services but god forbid you ask them to pay income taxes as a local if they are going to work from their host country ' it is preposterous; i already paid 10% vat on my 2 dollar frapuccino'