When I first starting FB, as one of the very first schools as part for the site, it worked really well. Now for some reason there are bugs that allow info I do

When I first starting FB, as one of the very first schools as part for the site, it worked really well. Now for some reason there are bugs that allow info I don't want not from my friends. I can't figure out how to turn the junk off. Does anyone know how? All I want is info from my FB friends. I've stopped using it because of all of this junk. They took something that worked well and made it not work well. Brilliant.