As for the link to the OP, I saw Baker's explanation that it was a courtesy to link anons to the top of the bread. No big deal, you can use it or not. Sometimes bakers get ideas and try them out.
As far as the last link to the summary of notables, I find that very useful when I'm on a mobile device. It's an easy way to quickly look through the notables on that bread.
Just my opinion here. I'm not a baker and they have much respect and love from me.