Yes.  LE can and does post ads as a means of running stings.  It is not entrapment, because you need to respond to the ad.
Not a lawyer.

Re: LE is really a risk?

Problem is, in Vegas there is no entrapment defense.

Vegas is one big Scam?

Really??

Scams for the idiots.

C'mon dude.. You don't know shit about Vegas so don't pretend that you do.

Cheers!

What the hell are you babbling about?! If you know about TER (which clearly you do since you posted here) then you've gotta go out of your way to get scammed in Vegas (or any other city). Just pick any one of the dozens of women who get consistent 8+ reviews and you'll be fine. Yes you can get scammed if you pick up a casino girl, call the number on a 'playing card' you find on the sidewalk or on a billboard rolling down The Strip, or if you call one of the unreviewed ads on the net. So don't do those things! They're for amateurs! Use this great resource (TER) and have a great time. Vegas is only the best city in the country for playing.

I'd suggest you reverse your search methods.

You seem to be looking at ads first, then seeing if they're legit. Your eye is attracted to the impossibly hot, professionally shot, stock photo, then you search TER and find no reviews (because everyone else recognizes it as a BS ad). Lot of wasted time this way.

Instead, search TER for gals getting reviews of 8+. Now you've weeded out the crap. Go through until you find someone you find attractive. Voila! You're now looking at an attractive gal who'll rock your world!    Oh, and, my guess is that the gals you end up looking at doing it this way won't be on Eros.