Historically, some of Lds "apostles" (like John Widtsoe) even make improper distinctions between the Holy Ghost and the holy spirit (small "h" small "s" on the holy spirit). Widtsoe claimed that the holy spirit is an "it" -- like an influence.
To this day, Mormons will often reference the Holy Spirit as an "it." Molly Farmer did it a couple of times in a Feb. 24, 2010 article in the Mormon Times.
Joseph Smith made the same mistake.
Bottom line: If Mormons can't even figure out that the Holy Spirit is personal and is not an "it," what do you expect that they could elaborate on anything else about Him?
Same as Jehovah Witness teaching.