Freedom without rules doesn't work. And communities do not work unless they are regulated by etiquette.

Many people mistakenly think a new technology cancels out an old one.

One of the big no-nos in cyberspace is that you do not go into a social activity, a chat group or something like that, and start advertising or selling things. This etiquette rule is an attempt to separate one's social life, which should be pure enjoyment and relaxation, from the pressures of work.