Scripture refers to all three persons of the trinity using the masculine personal pronoun, "he", including the Holy Spirit, who is a person and not simply a thing or force:
John 14:15-17, 25-26 (NIV)
15 “If you love me, keep my commands. 16 And I will ask the Father, and he will give you another advocate to help you and be with you forever — 17 the Spirit of truth. The world cannot accept him, because it neither sees him nor knows him. But you know him, for he lives with you and will be in you.
25 “All this I have spoken while still with you. 26 But the Advocate, the Holy Spirit, whom the Father will send in my name, will teach you all things and will remind you of everything I have said to you.
John 15:26 (NIV)
When the Advocate comes, whom I will send to you from the Father — the Spirit of truth who goes out from the Father — he will testify about me.
Furthermore, the scripture universally and without exception refers to God using personal masculine terms.
Since this is a Christianity centered site, we should do the same. Misuse of impersonal "it" and the clearly incorrect (and to Christians offensive) use of "she" should be edited and corrected.
Also, capitalizing personal pronouns for God is not done in English translations (and is, to my knowledge not applicable in source languages) and I would argue is incorrect grammar and should not be done (but I would not edit someone's post to change it).