Conferences in Hattrick are a place where you can discuss the game, ask and answer questions, talk about nearly everything, and most importantly, make friends. The conferences are where the community interacts and it is one of the main reasons to play Hattrick for many people.
In the best interest of you and all other players, don't join PIE. Also, please read the Conference Rules before posting on the conferences. This also goes for the specific federation conferences. Each conference has different rules, even though the federations aren't allowed to use stickies to tell all their members about the rules. Try to always search for the 'read this first', 'rules', or 'important stuff' thread before posting anything anywhere.