I don't think it's creepy, as long as you don't bring up information that might be too personal.
A rule of thumb I read was "Would this be creepy if it happened in real life?", and here you'd be analogous to "a restaurant owner asking a customer how their experience is on their opening day", which is totally normal.
A rule of thumb I read was "Would this be creepy if it happened in real life?", and here you'd be analogous to "a restaurant owner asking a customer how their experience is on their opening day", which is totally normal.