Human: I'm thinking about starting a question and answer site. What are the advantages of this kind of site? Assistant: 
The main advantage of a Q&A site is that it allows users to get answers to their questions quickly, without having to wait for a human expert to respond. Additionally, it can be more cost-effective than hiring an expert since you don't need to pay them for each response. Furthermore, a Q&A website can provide greater flexibility in terms of when experts can provide responses as they can work on multiple questions at once.