@Ron ******
You're not very smart. How would most people know what P.E. means & then you post it without explaining it? Doh..! It's basically just empty terminology. Privileged tourist visa, more like! Not much to learn from you.
Too many grumpy types on here trying to act more Thai than Thai who will always be looked down upon as foreigners anyway & being bitter towards other foreigners giving bogus 'advice' as they think someone might steal their girlfriend...
But the fact is, there's no rule or law prohibiting long term tourism in Thailand using tourist visas & visa exempt stamps, as is my only point here today - despite the false advice of those who should know better.
Certainly there are more solid visa types for longer stay, but that wasn't the point I was addressing.
Why rude people such as yourself have a problem with the truth makes you look odd & up to no good. You in particular have trotted out such nonsense many times & been shown to be full of it but you just do it again next chance you get. Strange behavior. It's not your country.