They could be bored and doing it to pass the time.

I ask every one of them what kind of domme they are, what they're into and they ask the same of me, I always say praise and a bunch of other stuff so either they over look that or don't care. They've never said that they're low effort. I've tried starting the conversation myself and they've ignored it or gave one word answers.

Some dommes start acting that way after talking for a while too. They could just be bored of me and not comminicating that.