My guess is gay is less likely to get it nailed by filters.
You also see folks specifically omit the T these days (LBG) to specifically include trans folks.
To be clear, the OP sounds like they are a good person and I'm not accusing them of anything negative! Just noting that some folks might interpret the URL differently than intended.
In general, I don't mind queer folks calling me queer, but I really bristle when I hear cishet folks use it.