Every single complaint against street preachers I've seen in this thread would equally apply to many ordained "Pastors" preaching from the pulpit. The second best selling Christian book of all time after the Bible, Pilgrim's Progress was written by an amazing street preacher.
Not sure if you are addressing my post, but mine is not complaint against all 'street preachers', just those that are not approved and called by the church. All 'ordained' Pastors would, by definition, be approved and called by the church.