As
In a perfect world, adults would park the strollers in a neat and orderly fashion and no one would steal a stroller. But none of us live in a perfect world. To term it loosely, *stuff* happens and we all have to deal with it.
It is not about how neatly the stroller is parked. All strollers get moved. Sadly, I think that actually encourages sloppy parking. Sometimes CM's even ask to park it outright.
I'm sorry this happened to OP, but don't give up hope. Over the years, and many trips to WDW, we've had several valuable items returned to us. I have been VERY pleasantly surprised! Do check back with central Lost and Found!
I think the fake dirty diaper trick is slightly silly (too well known), but there are other easy tricks that work. A lock is a bother, but colorful stickers and knotted ribbons/twine are not. Bright, easy to see, hard to remove on the fly, and doesn't interfere. A string can later be easily removed, and makes the stroller look far less new.
The more unique, the easier the stroller is for YOU to find, and less likely to be taken by anyone else- for any reason. It may also be - at least in some cases - that an innocent person grabs the wrong stroller by mistake. It's pretty common that someone mistakenly grabs my grocery cart by mistake - a situation where there is zero incentive to steal. Many strollers at WDW look exactly the same!
A few weeks ago, I had the funny experience of a lady walking up to my car, and 'attempting' to enter it. She was putting her hey in the door, and look confused. I said, "Um, I think that's your car over there!" She agreed, and apologized. I said, "don't worry, I figured that was your car because I just tried to put my key in your door." Both cars looked almost exactly the same! Right down to the little external paint dings!