What do you do when you see this on her ad? I simply move on, not wanting to waste time.  

A professional website is less, than $300 a year. You can update & maintain it yourself. I have no idea why anyone should ask for rates. TER has a profile with costs of services. Sounds to me, like negotiating is on the table.

Through the years have found those with even an email  vs. phone/text number on average are a safer bet to engage and also tiptoe through screening.

I move on, I hate negotiating, just list your rate and if i want to see you then I'll reach out.  IMO it usually means the rates are sky high.  

If I were advocating for this practice, I would point out that you can’t close a sale until you’re in contact with the prospect. Getting a person to contact you for rates increases the probability that you’re going to set up an appointment.

I hate negotiating price and ads without rates are ignored.

Wouldn't it be easier to display the current rate to avoid jumping through yet another hoop? I see this on P4 ads occasionally. If I can't afford a provider's rate, I will pass, but prefer not to waste my time if their gift is not in my budget.

Can mean either  a ripoff  or an open menu  .

And likely going to research the one inquiring to see their posting and review history. It’s so much more convenient if they just list their rates but some don’t want it as part of advertising in fear of LE reading and reprisals. But yes, most pass and move on such as myself I don’t want to play games and am not interested in negotiating.

and will never contact them.

Yes I see that on P411 occasionally along with having "ask me" under "P411 promotion".

The less communication I do, the better.

I have inquired about promotional rates and it's almost always not particularly worthwhile - something like 50 off a three hour date.

Usually means the rate is high.

I despise negotiating as well. I post my rates and my date options for this reason.