Participant anonyme 766 and to be precise, they tell me I cannot come back with a tourist visa for next 3 months ( I come back after 1 month with dtv, no problem )
When I did "visa run" last year, after 3 time on the same year they want to block me at the airport, after some talk they let me 1 last time stay here, when I leaved, immigration at airport was not very happy and give me again a warning ( I was leaving ... ), I come back with dtv, no problem.
So yes you are at risk, at least for a warning/talk with immigration , and maybe more ...