If there are topics I don't want to read about then I simply move on to the next. Just like with everything else here. If there's a pic of naked Stephen Fry and I don't feel like staring at it then I quickly scroll past it. If I know it's not my kink then I stay away from that kink. And if I start reading a fic but find out I don't like it for whatever reason then I simply stop reading it.

tldr The best approach is to pick out what appeals to you and ignore what does not but leave it be because it might appeal to someone else.