I didn't see Appirater in the link nor did a search on website reveal anything. I am concerned that my users may feel requesting a review in the App Store after

I didn't see Appirater in the link nor did a search on website reveal anything. I am concerned that my users may feel requesting a review in the App Store after 10 uses and/or 10 days to be unethical, but I cannot figure out what reasons they may have for doing so. Do you have any reasons this may be unethical?