I would love if there was an option to just see to the public posts on your readinglist when you subscribe to someone even if they have granted you access to more.

On LJ I've had it happen several times that I friended an LJ based on the public posts, which were for example all fandom stuff and not too high frequency, then I got friended back and also saw their thrice daily posts that were really personal (like about mental probles, personal and financial drama, all the stuff many people commonly lock), which is of course normal content for a journal, but sometimes these are things I just don't deal well with on my f-list that I want mostly for recreational reading. So then the only way to fix this for me is to unfriend them, or filter them out of my default reading filter, even though I want to follow their public posts. (I could ask them to just remove me, but those are really awkward conversations to have, especially if I don't actually know them, also in some instances they might have wanted to read my entries when they friended me back rather than just being nice.)

And I could see the same happening with the WTF system here, because some people might grant access to me, even if I just subscribe to them.