When a queer space becomes more popular for straight people, the culture changes. Straight people outnumber gay people quite a bit. So when a place becomes popular it can quickly change from being a queer space to being just another bar or dance club, etc.

It's tough because I know that queer spaces are usually very welcoming and inclusive. And I personally don't mind straight people enjoying the safety these spaces provide here and there. My own straight partner will sometimes come with me to the local gay bar for example. But it can be difficult to balance.