Why should expats avoid the Poipet border crossing into Thailand?

I think more useful this warning if we know what kind of visa or visa exemption got denied entry. For example in last month I was in Siem Reap few days and no problems at Poi Pet but I have Non-O.

Okay listen up, the REASON that passport control uses on almost ALL denial of entry stamps is the same ไม่มีปัจจัยยังชีพตามสมควร <- no way to support yourself in thailand.

That's because they can't legally deny you for being in thailand too long, or any other reason.

That is the "catch all reason" and they use that even if you show them you had the 20K baht in CASH to show as proof of funds to get in.

Also remember at the land border all they do is turn you around and send you back to the country you just stamped out of. BUT if they deny you entry at the airport it is totally up to the immigration officer at passport control as far as if they'll let you go to any country you can get in to OR send you back to the country your passport is from.

THIS is a denial of entry stamp at the Aranyaprathet / Poipet border..

Yes even back in my early years in 2004 it was a horrible experience the only good thing was the free secret bus from Bangkok and buffet breakfast at the casino.