In order to try to solve the problem of unqualified Western teachers, Thailand is now clamping down on tourist visas. These unqualified teachers cannot get work permits so they live here on tourist visas, leaving the country and renewing them every 3 months.
Now it's going to be more difficult to do this. However, the only thing this new tourist visa restriction will do is to penalize the true tourist to Thailand. The guys who are getting them illegally, will just choose to stay in Thailand illegally, so nothing will change.