I cross that border 4-5 times a year. Never a problem. It’s people doing border runs and living in Bangkok (as it’s the closest border to that that city) on visa exemptions who encounter problems.
they get it from all the embassies of countries where the chances of "pulling a fast one" are high. We're aware of that. I know sooo many illegal workers back home it's insane. Stop butthurting, that's just the reality of the world.