@LoyceV, meriting/agreeing to the OP from trusted device but disagreeing from non-trusted device

Strange that I agree with the non-trusted one.
Meriting a post does not necessarily imply agreement.
Correct.
Effort and thought put into a post can make a user merit such post, even if the meriter feels the content of the OP is not 100% correct nor is he or she in absolute agreement, though agreement in most situations is the determinant factor.