Weird, I have seen something like this before and it wasn’t related to webrep, it relates to images not being displayed and in its place there is the image description.

So it may be that there should be the webrep bars displayed on those posts.

Interestingly I have been browsing the Blackberry Devices section and other than the link you gave I have found no other instance of that displayed and many of those you have contributed to recently, http://www.google.com/support/forum/p/Google+Mobile/thread?tid=3d27c8bd3340d33b&hl=en

As you can see from my signature I’m using firefox.