I've had a problem with the Participated threads. When I go back to read additional responses, if another page has been added, the last few entries that filled up the previous page don't appear unless I force a reload of the second-to-the-last page.
I also had the Web View lock up the app (example: the Sinkhole Swallows Corvettes thread, I tried to look at the News Update in Web View, and I had to Force Quit the app).
And I still have the issue on the App's Web View of not being able to log in due to some Ad hijacking the screen and redirecting the page to some random ad before I can enter my credentials.