Can I stay in Thailand for over 8 months on a multiple-entry tourist visa?

The user, a Lebanese national, is inquiring whether staying over 8 months each year on a Multiple Entry Tourist Visa (METV) is acceptable, considering they exit and re-enter Thailand every 2-3 months. Comments indicate that while it may be possible to stay for 8 months, repeated entries could raise suspicions with immigration, and there are risks of being interrogated or denied entry after multiple extended stays.