This only affected posts within a five minutes time window last night, while we switched some code behind the htmlencode/urlencode we use here. This was noted here before.
Basically I was thinking of the possibility of some malicious user injecting HTML code on the subject of a forum discussion and that not being filtered when added to your friend's timeline. Therefore when looking at the Wall that code could be executed.
I changed the encoding for all fields around and those strange posts happened while the scripts were being changed (kept the same old routine name but with new defaults and added a new routine).
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