Not sure︂ I understand what you’re saying.
Do you believe that you don’t have to pay tax︃ in a country if you stay there less than 183 or 185 days per year?︄ Because if you do, that’s not true.
Or do you mean that Malta will “protect”︅ you against some other country claiming you as a tax resident there, unless they can︆ prove that you’ve been outside of Malta for 183 or 185 days? Again that’s not︇ so clear. Usually in the DTA, there’s a rule that says, if you say 183︈ days in country X, you shall be considered tax resident there. But if that’s not︉ the case, that doesn’t mean you’re not tax resident there.
Either way, I think I︊ agree with what you’re saying: Get a tax residency in a country with low taxes︋ and a good reputation, maybe pay some tax there, then live somewhere else. Especially within︌ the Schengen area, the chances of being caught are extremely low.