I answered yes to this because I met Irina through a bridal agency in Kyrgyzstan. I was introduced to her by the agency and paid them a fee so my research concluded that I am correct in stating this. What additional time or checks are done if going this route?
None. Just make sure their address and contact information is correct. This is just a new item added to the application. For what, I don't know. They didn't ask us anything about it. Just make sure Irina knows about the information and answers truthfully if she is asked in the interview.