Alll of these posts tap into what makes us human. If we feel excited about something we are experiencing a flood of endorphines and want to share or connect this experience with someone else. Seratonin also plays into this in a much different way. It is perhaps a combination of both. One chemical induces the thoughts of love and survival while the other promotes laughter, appreciation, and acceptance. When the feeling of wearing is new and exciting our level of caution goes out the window much like the feeling of falling in love. When we are under this influence we may want to announce it to the world. We are not always apt to make the best decisions while in love. It's all consuming.
On the flip-side of this emotion is dread and anxiety. Let's say you played a prank on someone. You may soon wonder if you've gone too far and could in result hurt this person's feelings. The next natural step is to tell someone else of the prank to recieve conformation on your decision based on their reaction of what you just told them. This also plays into the feelings of being diapered. With little reasoning behind it other than an "unsober" mind, we may seek that same type of confirmation from a neutral subject. This is called affirmation.
A good example to understand this desire is to lightly compare it to the affects of alcohol. Alcohol when consumed alters our mood and hence alters our decision making process. We may/will make different decisions and conclusions while sober than under the influence.
I can completely understand the desire to tell someone. I have often been at work and when a co-worker asks what I'm doing this weekend I have heartfully wished I could say I'm gunna put a diaper on. This is much like the fantasy of "getting caught wearing". It is an intoxicating thought.
When we stop for a second to evaluate how odd this would seem to someone we can appreciate the magnitude of it. Remember, it is completely human to want to share this desire but reality can be brutal.