Not in person, not in twitter, not on webcam

I have found it just a waste of time to ask, maybe they are ashamed of it.
So if you have to ask they dont

There are a few exceptions.  The pornstars who have worked the brothels in Nevada are usually pretty open about it. The Minka Tans, Sunny Lane, Kathy Willets, etc.

Teri Weigel is very open about since she started escorting back 1999.  She even mentioned on a Naughty America interview as recently as 2010 that she still escorts to this day.

Mercedes Ashley tweets about her escort session’s.

Both Teri and Mercedes refer to escort session’s as business meetings!

I have a half-dozen escort cards given to me by pornstars at personal appearances.  

It used to be fairly simple if the pornstar was also a feature dancer.  You'd ask for a private dance, then at some point she'd drop a hint that she can give you a better show, then you'd ask if you could  have a private show at another location and then everything would be set.

I was not aware of how many of you are not getting how this works.

As Mr. French had said, back in the old days we would ask at an appearance. I remember on the old Desperado (LA is Fun) board, I learned a few of the ways to show the talent you were a legit John. Also from the ones I met, I would ask of they would be a reference which was of immense help as the talent pool was considerably smaller than today.

And the reason why the smart ones will not discuss such things over phone sex services or any of the video chat sites;  they can and some do make a decent amount of money off those services which are run by legitimate corporations that monitor their chats and would boot them for illegal activity. Others just don’t care and will take any opportunity to advertise, no judgment as to each is own.
I guess those of us from back in the day had to learn to do the ground work ourselves. There was Nici’s Girls but like any agency, charged way too much for the same girl you could see for a fraction of the price. Some of the girls on the agency sites can be seen for half and in some cases less of what the agency is charging.

There are some porn gals whose standard, stock answer is that they don't but who do escort UTR.
Some are picky and choosy about who they see.
Some PUBLICLY say they do not escort when the cognoscenti know that they do.
And as French points out, some are very honest and open about their availability.

in person they would first have to be assured they weren't talking to LE which is difficult to prove without references. On twitter or other social media many of those are set up and maintained by their agent and you are not talking to the actual girl but the agencies tech that is told to say no.

They will not shout it loud, but if the situation has some discretion there are some that will say yes.

Again, most of the UTR one's won't and will deny it in public.

Like in all things here, TRUST and DISCRETION are important.

Yes. I have experienced both.

You are right. But reference is the best.