Hello to all.
I have made a small observation with regards to this term and its misuse. I notice people throw it around a lot...incorrectly.
If you are sure you have some kind of Godly power that you have attained from constant fasting and prayer, or you have been ordained to a high ecclesiastical rank, then by all means, continue using the term. If not...then you don't really have any blessing to give. Most, it bothers me when people use the term when conversing with priests in a letter or other message. The priest blesses the layman, not the other way around! A simple 'In Christ' would suffice.
Just an FYI.
Please remember me in your prayers.