Brother, you should get out of the country a little more- and stop getting info just from the news, which just sensationalizes everything lol.
While it is definitely possible to get scammed in SE Asia - I would hardly say it is "Very likely" that it would happen.
Millions travel to SE Asia every year - the vast majority have a great time without being scammed.
When it comes to the sex industry - a small amount of scams is ALWAYS going to happen, it's no different from here.
One of my clients from work said he recently met up with a young girl on Seeking, who took $400 off him from a cafe in the City, then told him to meet her at a nearby hotel for sex - needless to say, he got scammed
A little bit of common sense and street smarts goes a long way when solicitiing for sexual services - this applies regardless of where you are in the world.