I will start by saying that I really appreciate you beginning this conversation. As a Christian who regularly uses cannabis I have oftrn felt that it was something I had to hide for fear of judgement from fellow Christians. I think you have hit it on the nail when you say that a lot of Christians are uninformed or misinformed about cannabis. Due to its history of being criminalized I think the church had just followed suite and deemed it sinful without really taking the time to understand.
I smoke for both recreational relaxation and for depression, pain management etc. My dad had stage four cancer a few years ago and due to prayer and cannabis oil is now in remission. I think God created this plant with incredible healing properties that we have yet to fully explore.