Hard Cases: Church "outs" an anonymous blogger

It is not unusual for someone to have a problem with the leadership of their local church. Leaders - including pastors and elders/overseers/trustees/deacons/etc. - make mistakes or often are doing the right thing and simply not explaining themselves. My own church has been moving from a pure Congregational model to a more closed model in a way which has been disturbing to me. Scripture has fairly clear guidelines for dealing with such concerns, which generally goes, "talk to the problem person singly, then with one other person, then with the elders, and then before the Congregation." (Yes, Seminarians, I am aware there are many more verses and a whole history here. Feel free to expound in the comments.)

But what happens when a church dispute comes up against anonymous blogging? Should church leaders honor the unspoken agreement of the internet and let the blogger remain unknown? Isn't such a move in line with First Amendment rights of free speech? Or should church leaders seek out the blogger and discipline him/her for not following scripture.

In the case linked above, church leadership erred on the side of control and had a police officer (who also worked church security) seek out and expose the blogger. The blogger was then expelled from the church, as per 1 Corinthians 5:4-5.

To me, this seems like a hard case. On the one hand, the blogger clearly was not following scripture. On the other hand, it appears the pastor himself - in his zeal to discipline - clearly crossed the line to find the offender. Either way, Christ's name is being dragged through the mud, and the gospel becomes a laughing-stock among the world.

What would you do, as either the pastor or the congregant?