As with everything, there are pros and cons. One con is that many of the so-called experts on various subjects are clearly out of their minds, and one can only assume that there are people out there modifying their lives based on the advice of lunatics. The greatest thing about the internet is that the world of known information is at our fingertips, quickly. Then there are the ethical issues that may never be settled, like the fact that pedophiles posing as children are creeping into chat rooms and initiating interactions with unsuspecting minors. This threat is far more dangerous than many other perils faced by children because of the aspect of anonymity.
Predators can hide behind an alias online, behind the innocuous look of text in a white box.
There's a fine line between protecting children and ensuring the rights of adults. It used to be that red light districts were in the seediest section of cities, and children would be kept from these areas, as were most adults who were unwilling to be spotted there or had no desire to go. It's no accident that Times Square, once one of the world's most famous such districts, became a Disney mecca right around the time that the internet began becoming more and more popular. There is a slang term chatters use, RL, meaning real-life. There is a distinction between the wonderful world of make-believe and the reality of life.