It's a good platform for those who are into having answers to their questions without giving so much effort and time. Also good for those who will apply and accepted as BussyBuddy and earn money by answering questions. I think the CONS is, it will not attract so many people since Google is already available and people can search anything into it. Websites like stackoverflow is also there and members can help with the query, for FREE.
On our website are Experts what will give you the best answer and what are considering their efforts to answer you have in back a hardwork, money invested in their education and they are not considering to sell their knowhow for free!
If you will invested in your education 40 000 $ or you have spent 10 years in your Field to become a Guru, are you able to offer for free your knowledge?
Ooh, I see. I'm just saying my opinion that it might be a CONS, but as what I've mentioned, it's a good platform. To answer your question - if I can help for free, then why not? It depends on the situation, but I will help as long as I can, just like how others are helping me. But still, with your site, it's a different situation, it's a business that's why I understand that you also need that payment.
With your statement, we can be sure that the answers will be coming from the experts, right? It seems that only Experts and Gurus can apply to be a BussyBuddy, if that's the case. Anyway, good luck with your project.