It doesn't matter if it's a forum. Whether you acknowledge it or not this is a church fellowship of "called out [ones] - "ekklesia"]. Where two or more are gathered in His Name there He is in the midst - whether in person or worldwide. An individual is a church ("ekklesia" "called out [one].) We carry "church/"ekklesia" everywhere we go. If I'm on the bus and I meet a fellow Christian Christ is in the midst. If I'm on the phone and the person at the other end in a Christian, then Christ is in our midst. If we gather at a forum, we are a church "ekklesia" because we are "called out" of the world (Jn. 17.) and have gathered together to lift up His Name, His Word, discuss His Word, practice our faith and gifts, etc., and this cannot be ignored. We log in as Christians and fellowship with each other.