Why is it acceptable here to ask women questions you would never ask otherwise?

This is a public, anonymous place. As such, some feel they can ask questions, they've always wanted to ask in real life, but were otherwise afraid of the repercussions of their curiosity. The blowback, in real life, could include being labeled, embarrassed, outed, persecuted, harassed, and so forth and so on.

On SW, they can (I presume), ask these questions, without the repercussions. Of course, some could also be sickos and perverts. This applies to both men and women.

You can always block.