We don’t say Reb when we refer to the Chida. I did notice some instances, though, where he is referred to as ?????”?.
Now, I put a smiley there because we all know that it is not the same thing. It might take a 500 word essay to explain the difference, and the difference can still sound weak. But we know it is not the same thing. This is exactly what it sounds like to me when people here throw in something that can technically sound related. It happened on this thread as well.