The "Q in LGBTQ can have several meanings. There is no set defintion, just because all of these terms are still evolving. Both "queer" and "questioning" are accepted as possibilities for the Q. I personally prefer "queer" because I dislike labeling, and prefer the ambiguity that calling myself queer grants me. I also find that it is a good umbrella term for anyone who feels offended, for whatever reason, if their identity is not included in the acronym.
Overall, it's really not that big a deal. Words are important, yes, but what is more important still are actions, and there are actions against the LGBTQ community happening worldwide.