To address the actual question in the OP.
Of course there is an over representation of such people in Thailand!
Because of it's attractions of easy entry and stay, cheap living, exotica, scenery, climate, etc. this country has become an end destination for much of the world's detritus.
People who don't fit comfortably in their home country because of lack of retirement funds, loss of close relstionships, loneliness, criminality, mental illness or simply needing to re-invent themselves as something bigger than their reality, move here.
In the crowded expat bars, they can find a plethera of similar lost souls assuaging their various demons with cheap booze. Many are very eager to meld in with their peers and are open to social intercourse with strangers.
The story tellers, who harbour a need to magnify their deeds and persona, are in hog heaven.