Sure - its the body font of the forum posts actually. It seems to be 1 or 2 pts smaller than all the other fonts around it. On a laptop, it is incredibly hard to read because of the resolution of most laptops.
It would be better if it was the same size as the Post Time above it. Even better if it was configurable via the "preferences" menu selection.
Here is an image (I have overlayed a standard explorer window to show the comparison):