A problem some may have with friend notifications are people who have a silly amount of people added, now i cant see people having 2000 friends but i wouldnt put it past alot of people, imagine if you have say only 400 or so, odds are every minute or so someone would be signing in and out, might not annoy all but it would irritate they hell outa me seeing a message pop up every min or so lol,
this is the reason i try not adding anyone on my ps4 trophy account, wouldnt be bad having a option to turn on and off or notifications when certain people come online but notifying when each person comes online would be crazy if you cant turn the option off, as for recording, the original idea would have been better, i mean on a fps game you cant know if you are going to clutch something or fail, and you dont wana record 100 times to get a single video, other then that loving the ps4 still, final playthrough on infamous and about 70% into deadnation, no going back now!!