I just came back from Immigration today (Isaan) and no they are not enforcing. It fact, they stated if you have a valid reason, they won't be limiting at all. My son is waiting for his documents to come back from US State Department for his Thai ID and Passport. These have been sent, told by MFA they need more stamps ( had to send back to USA again) for more than 90+ days. Immigration told him to go to Laos, get another 60+ 30 and if more time is needed do it again. So NO this is not policy.