IPTV is not an illegal way of distributing media content, but it is illegal if the person who delivers the service does not pay copyrights, taxes or has any broadcasting license. All these services that you can find online (including the forum) are of course illegal, but torrents are also illegal, as is pirated software.

People use illegal IPTV because they think that nothing bad can happen to them, which is mostly true - those who are sometimes caught are mostly the providers of these services.