IRFCA is not higher quality. The main difference between IRI and IRFCA is that the average age in IRFCA seems to be 65+ years. They are all old and very conventional people. I was a member there last year, but got very, very bored. Also, it takes days to get replies, whereas here a thread gets replies within seconds. 100 replies within 2 hours.
I couldn't find people my age there. Also, there's no sense of humour among these old people. It is just a very strict and serious conversation among very old people. Overall a very boring site run by old people. That's why I quit that site.