I´m using the sitewide feed for displaying latest comments and latest posts. So far works fine and looks like it doesnt add too much load to the server. I wonder how to customize the output for latest comments, in order to make them more understable. As of now it outputs "By Author" and i´d like to turn it into "By Author on Post". I tried using the_title_rss variable for it but it didnt work.
Also, it removes the Hello World post from the latest posts, based on its modification time, but it still displays the Mr Wordpress comments. I´ll try to remove it with a simple if statement, but i wonder if anyone tried tweaking this before.