This is the never ending argument that
@Tod ********
closed a thread a while ago for.
People are twisting the interpretation of a multi non B.
@Joe **********
is saying: " Such a visa holder is required to exit every 90 days."
No, such a visa holder is required to do multiple business visits to Thailand for a maximum of 90 days per visit (underline the word visit), not to continuously stay 360 days with visa runs in between.
The fact that people do it and it's all been good so far is a different story.