This is a minor bug caused by an in "edge-case" in the About-Me field of profiles.
When the final line of the About-Me is a link, and the total length is just over the cut-off length (for read-more), the link is garbled and cut off, even thought the processed text (i.e after translating the [ ] into a link) is actually shorter than the cut-off limit.
Here is an example: http://www.geni.com/people/Ham/6000000002293771207
