I guess I'll make a few points here to perhaps shed some light on us as a community with similar interests to help answer the original posters question and perhaps any other's that might stumble onto this site.
First off to clarify, what we do in no way involves actual children. For those in the community who are Teen Baby/Adult Baby, it involves the desire to be treated in an infantile manner. There are many reasons people would like this if for nothing else than it might help a person get rid of the stresses of teen/adult life, if just for a short while. These activities are done alone or with another consenting adult, again, not involving children.
Some folks on here are what are termed diaper lovers, or DL for short. I'm going to try my best and keep my description for general audiences as this is not in the mature topic forum, but in a nutshell, different people have a tendency to develop a liking for certain types of wearable garments, whether it be specific types of underwear, clothing styles, shoes, feet, whatever. We have a liking for diapers. There is nothing unhealthy about this, they are a perfectly legal and generally readily available item that does not cause physical or mental harm. Why do we like them? Well, that is certainly a topic of discussion and there are several threads about this site which focus on this exact topic, please feel free to use the search feature to search for some of these topics to find answers of various members.
As for what is on the internet about this, there is a lot of information out there. Quite a number of sites would paint us in a negative light and may have participants who may conduct themselves in a manner unbecoming of an upstanding quality individual. This is NOT one of those sites. We have an excellent team of moderators to help ensure that potentially unsavory individuals do not partake in the discussions here, in fact the general membership here can sniff those people out in about ten seconds flat. If you don't believe me, take a look at some of the posts by banned members and the responses to those posts that were made by members of this board who are in good standing. Also, people who are members of this site have undergone a background check by the staff. I do not know what this check entails, but I know it has prevented several "questionable" individuals from obtaining membership here.
As for this board as a whole, the majority of what goes on here believe it or not does not actually really discuss AB/TB/DL/Babyfur and whatever else I'm missing. This is generally a community of people to talk to each other about a variety of things and different viewpoints are quite well respected - a rare quality in internet forums indeed. The only real difference between Adisc and other general interest forums is that the discussion of diaper or adult/teen baby or fur topics is fine and is promoted.
Also, I think that it is important to note that there are several forums on the internet which involve the AB/TB/DL topics and they have a much larger membership than we do, however the participation by the members is generally much lower. Most members on here are quite active, at least on a weekly basis. Other sites on the net claim thousands of members while I believe we are still under the 500 mark. I would ask anyone not to judge an entire community of people by what goes happens on a few of the "less clean" sites. We are really no different than anyone else and what we do in no way affects others in any negative way.
That's it for now. Hope this helps a little.