As a casual reader of Blogs, I usually find very difficult to address a particular user’s comment, specially on Blog entries that have a very large list of participants. What I usually do is creating a new comment and adding a “@userid” tag to address the user, but the lack of threading makes it very hard to follow or create a conversation. GMail solved this more or less elegantly for e-mails. Wave has also solved this more or less, but few use it.
It would be nice to implement a system, like Slashdot’s, where one can easily comment on another user’s comment. The same holds true for wall posts in Facebook, where comments from users are not threaded but mixed.
Am I the only one that usability when commenting in Blogs and social networks can be improved?