How do you separate the Romanian profiles from all the rest, just curious.
As indeed you may be implying, some Romanian profiles have "Romanian" in the nationality field, but many have no nationality given.
In those cases – although it's an inexact science – there are quite a lot of clues.
Romanian profiles tend to include long, highly-coloured, entirely invented pornographic accounts of the girl in question's extreme horniness and of what she likes doing with men.
Most Romanian "Enjoys Lists" (as previously mentioned) are the same or very similar.
£60 for half-an-hour usually, but not invariably, suggests a Romanian. A minority now charge £70.
"In your town" and similar phrases are (as already discussed) indicative of pimped girls who travel around Britain – usually, but not always, Romanians.
A profile that stays in any given location for only a week or two is likely to be Romanian. (In the Portsmouth and Southampton area, I would estimate that only around 10% of Romanian girls on AW at any one time are of "fixed abode". The rest are here today, gone tomorrow.)
All these, I accept, are only pointers. But a lot of pointers pointing in the general direction of Bucharest generate reasonably supportable deductions.