@Lisandro ******
that 180 days is a myth. It seems to be more about how many times you enter as a tourist, with the total days being irrelevant. Living in Taiwan previously, I had always been able to do visa runs every 90 days, never get an actual visa, never a problem there unless you overstay. After moving to Thailand I ended up doing visa runs to KL instead of extending because it was marginally cheaper, and I got deported on arrival on the 4th arrival in 1 calendar year, even though I had only spent 3 months in the country as a tourist that year.