Don't make me get into semantics Ving!
stick insects
look like sticks, not act like them...but I do understand what you are trying to say. I'm just pointing out what the article was trying to say in regards to why they are calling what they've found a galaxy.
In regards to what argonavis was saying, I think the difference between this hydrogen gas and other hydrogen gas clouds and why they aren't calling it just another molecular cloud of hydrogen gas is as I outlined above - that it behaves like a galaxy and is about as massive as one, so that's why they're calling it that for now. Chances are, this is probably a new type of object and then once confirmed, I'm sure they will designate an official name for it.
As to why there are no stars yet there is so much star forming material, I'll leave that up to the astrophysicists to debate over!
