I think it really depends on the target AND the time frame.
I really like the SampleCube surveys but there was a time not long ago that I didn't.
Same goes with most all of them. I can click on a Samplicos survey and be at a SampleCube survey.
If you're getting a lot of same listed surveys for same amounts, it probably isn't a bot. It's dead surveys.
I ask how many surveys you get in a day because the amounts of surveys with the same price point,
can be the same.
I can see ten, twenty, or more suveys by the same listed survey name and the same price but they
are not all dead but some might be. Some if not many are in fact coming across the different routers
but same survey.