Exactly..any competent programmer with even minimum experience should be able to write automated emails that pass the majority of mail servers. Typical of pretty much any programming done for government agencies here. Never tested and buggy as hell.
Don't know if I'm just lucky or missing something here. I've had a Non-Imm O Visa extension based on marriage Multiple Entry for the past 5 years. Always extended inside Thailand. I have never had to leave country every 90 days, just do 90 day reports. When I travel, Immigration just stamps me out and back in, no extension needed.
You can definitely do non-O based on marriage in Hua Hin as long as you meet financial requirements of 400k baht in Thai bank account for 2 months prior to application. I live there and have been doing same for past 5 yeara