Not to hijack your discussion but, I’d like to offer a few points:
I know we live our “MoTabs” and “RMs” and other abbreviations but “Exmo” has such a judgy slur vibe to it. This discussion is generating some very kind and compassionate comments that don’t really “jive” with what appears, on face value, to be name-calling.
If we have been admonished to no longer identify ourselves as “Mormon”, because it lacks the dignity in being a member of the Church, wouldn’t referring to someone as an “ExMormon” run afoul of this? It then even seems to add a double negative connotation to it.
I like how the U.S. Marine Corps treats their community membership. You are never referred to as an “Ex-Marine”. Once you have joined their ranks, you are always respected for that and are simply a “former Marine”.
While we respect someone’s decision to not be associated with us, it seems the truer spirit would be to continue to consider them still Brothers and Sisters, even if they choose to be former Members of the Church of Jesus Christ of Latter-Day Saints.