Not really, no. I've upgraded from lenny to squeeze, I don't know if
that brought in some icon changes.
I went browsing all icons in pidgin-data, and in fact I found the
'incriminated' icon there:
/usr/share/pixmaps/pidgin/tray/22/tray-new-im.png
I don't know when it changed, but it used to be something more like
/usr/share/pixmaps/pidgin/tray/22/tray-message.png a month or so ago.
Definitely something like tray-message.png would be more appropriate.
Now that I've found it I can of course fix it myself by doing "cp
tray-message.png tray-new-im.png" (and I've done so), but the point of a
bug report was to show cases where that icon is not really appropriate.
That was in a hurry, I was rather disappointed.
Anyway, icon design is subjective, so I'll leave it to your judgement to
decide whether it's an issue you care about or not.
Ciao,
Enrico