This has been happening for a long time, 3 years, since the current site owner switched from WWWThreads when he acquired the MacMinute name and archives. Here's one example
with a long string of text. It will also do it if someone posts a long URL without using the url tags to make it a link.
And here's one that does it
when in threaded mode. When threads get long like that one it always does it.
Anyone seen this before?