"Sociologically Christian" would be as close as it gets.
Dan
Exactly right. In actuality, the so-called "other Christian" category is just that -- "sociologically Christian" (with the exception of Messianics, who probably should be listed as "Evangelicals, Kosher").
If Unitarians belong anywhere, it is in the hodgepodge "other Christian" topic, with the LDS and the JW's, etc. (as several posters have already noted, including some "yes" voters).
Personally, I continue to maintain that the most accurate category for unitarianism is either "other Non-Christian" or... "Judaism"!! Unitarians run the gamut from New Unitarian Leftists to Old Unitarian Moralists, just as do Judaists; the primary difference between a Modern Unitarian and a Reconstructionist Jew, or an Old Unitarian and a Conservative Jew.... is one is Hebrew and the other is Noachide.
There is no perfect way to do this, short of setting up one or two hundred separate denominational topics. The descriptions are not meant to be definitive, but to provide some guideline as to what would fit in that topic. Unfortunately, no one raised the Unitarian issue on the previous thread. As far as the Mormons go, they self-identify as Christian, so they do, IMO, fit more appropriately in "Other Christian" than in "Other non-Christian". I couldn't really justify setting up a separate topic for LDS, when I didn't do it for Lutherans, for example.