@Tony *****
Your border runs for years means nothing. Everything is COMPLETELY different since they changed visa exempt to 60 days. People are getting pulled up for even doing a SINGLE border bounce after maximizing their 60+30 visa exempt beforehand. Borders are becoming much more strict, requiring people to spend multiple nights out of Thailand, and requiring proof of a PAID airplane ticket back to passport country after 60 days, proof of hotel reservation, and showing the required cash to enter Thailand. Dozens or hundreds of people are being denied entry every day at the airports. It's a completely different situation now and not one to be taken lightly unless you enjoy spending thousands of dollars buying a last minute ticket back home after being denied entry. Facebook groups are awash with people reporting these issues daily.
Someone who spend 6 months in Thailand before going on an ED (which was only gotten to CLEARLY live in Thailand, and is the most abused visa type there is) and then immediately leaves and returns on ANOTHER visa exempt? There's almost 100% chance of having issues if trying to border bounce by yourself. Immigration isn't stupid, they know you are abusing the system trying to live in Thailand without a proper visa.