Just waned to give you a heads up in case it's an issue. I am just going to chalk it up to a work in progress thing right now. I posted a link on someone's profile as a comment. The link is active on that person's profile, but when I see the mirrored post on my profile the link is not present. Additionally when I tried to expand a comment discussion on someone's profile that had 2 hidden comments I received this message:
Invalid userfeed specified. If you followed a valid link and believe this is an error, please contact us to let us know.