Do any stations do live requests anymore? And were they actually taking the requests or just the average of the popular songs that people wanted.
I have worked for very few stations that actually took live requests. I don't think any in rated markets ever played actual requests, except during specialty programming. Even the "All Request, All 80's Memorial Day Weekend," which actually was all request, didn't play every single request it received. Usually, we'd store calls for popular songs we knew would be coming up and would play them back (in full or slightly edited) when they came up.
A couple of the top-40 stations where I've worked have tracked requests on current songs so we could get some idea how popular they were with our audience, but that was only one piece of data, and not, by any means, the most important one, we used when determining how many spins songs would get.