"gummy bears" do you mean a old chubby white guy with no teeth?
This is just a random thought but how do hobbyist feel when ladies leave a list of gifts they enjoy on their ad ?
Does it bother you ? Or could you care less ?
I don't have a list but I always appreciate when a client brings me gifts, definitely makes you feel great.
That said, I have seen lists that provide some insights into a woman's likes and tastes which can have an effect on me, sometimes making her a bit more appealing, other times a complete turn off.
Agree with Mac, Kinda' tacky, like pushin' the envelope a little. Until she deserves more I `ll stick with a nice tip, a rose/s and a scratch-off lotto ticket.
Imagine if you won the lottery from some lovely gent bringing you a ticket!!
but don't give serious consideration to anything on it until/unless we establish a rapport. Not much of a chance of my going to her gift list right out of the gate.
In my experience, those who are interested will find it. 
Some potential clients might be put off by seeing it front-and-center in your ads, thinking it's an expectation or something like that. 
When a woman puts her "wish list" in her ad it screams GPS to me, when it's only on her website, as long as it's not overly pretentious, IOW not full of nothing but items sold by Gucci, Versace and Ferrari, I just kind of skip over it without paying it much mind.
I definitely recommend "wish lists" are toned down a bit with at least of few of the items being those of the low cost variety where it's plain it the "thought that counts". Yes this is a business, and yes you girls are trying to make as much as you can, but coming across as overly mercenary is a huge turn off to many of us.
I generally think they are more successful when most of your items are below $30-$50 as I've had a good amount of items bought off mine so far. I think the most expensive thing I have on there is a $250 set of adjustable dumbbells that I'll eventually end up buying myself. I agree its kind of silly to put a bunch of expensive items on your wish list but I've also never cared for designer brands.
"Adjustable Dumbbells" are you talking about the product or the guy who buys them?
Suggested I could care less.
I don't give gifts to women I don't know very well. It seems shallow and disingenuous. My regulars receive gifts for Christmas, birthdays and Valentines Day, but by then I know them well enough to know what they like.
I generally notice this information, but don't read it the first time I see a lady. If the first time was great and there is going to be a second or third time, then yes I will usually go back and read it because the burden is shifting away from her and to me.
the first time I meet someone, or for their birthday, etc.
As long as it is practical. I saw some wish list that listed a Ferrari. I don't think so.
booze. But that's not really a gift, because the point is for me to end up drinking it, too.
I don't really care about wishlists in ads, though I wonder if it's worth it.
I knew a working girl who went to Dubai to see what it was about ten years ago. When she returned a few weeks later she had a very nice gold Patek Philippe on her wrist and made a ton of money. Seems some sheik took a liking to her. He actually flew over on his jet to see her a few times. He wanted to add her to his harem but she didn't want any part of that. So that Ferrari mentioned in an ad could happen. When money isn't an object anything is possibily. Must be nice...
on her website, I may / may not take a look. If I do, it is because I want to know more about her likes and dislikes.
I sometimes give a gift but only to a lady I have seen multiple times; for a specific reason.