Can multiple exits and re-entries lead to denial of ED Visa entry into Thailand?

I think people are hassled about their exit/re-entry history on ED visas (especially ones for private language schools where you get extensions 60-90 days at a time) because the immigration officers know you have to hit a minimum of hours attended per extension AND they know there is no approved online way to study to accrue the hours. SO they do hassle people.

I called two schools in Bangkok and the only thing I could get from them was that people get hassled, AND the MOE wouldn't issue extension paperwork because the students were not in country for 80% of the scheduled classes.

It’s no wonder Thai officials are denying entry if ED visas are just being used to stay here long term. It’s an example of abuse of the visa system leading to a reaction in policy. And it harms the people who legitimately want to study here.

I looked into the ED visa and it sounds like the easy ticket to stay in Thailand, when you read up about the visa you will find that you have to do the hours in the classroom , there are tests too make sure you are reaching the expected level of thai language conversation etc, they were also going to ask you to have the other students sign paperwork to say you were a classmate etc.....so im going the non immigrant OA route its legit and trouble free, if you dont want to go the nin non immigrant OA route then a METV is the next best route...dont get caught messing around with the wrong visa you will get caught, people trying to play the system make it bad for everyone. Just my 2penceworth

I am considering an ED visa in the future. I wonder if this visa will be the next "crack down" ?

Yep...be aware. You are at risk of being denied. Thai Immigration can easily see ALL your history. Times are changing. Be prepared for denial. Clearly you are playing Russian Roulette with your visas, extensions and living in Thailand. Get the CORRECT visa.