I have only heard of that in relation to iChat to IQC users.
ICQ was once owned by AIM and formed part of the same "Service"
That is to say it logged in to the same Servers and ICQ names could be added to an AIM Buddy list and vice Versa
ICQ has since been sold off to some Russians and has it;s own servers although can still be "AIM Buddies"
The point is though, that IQC users do not have stylised Balloons or Bubbles for their text Chats and cannot deal with the extra info that is sent.
Basically it is HTML to form the Balloon and colour it and the Font.
I have never seen a Post to say the the PC app called GoogleTalk had this issue
In earlier versions (iChat 4 and 5) there was an Add-on called Chax that could remove the HTML for ICQ chats but it does not work in iChat 6
Google and AIM have both added methods of "Automatically" adding Buddies from the other service to their Buddy lists
I am wondering if the GoogleTalk app has an "ICQ mode" that is enabled.
Please, if posting Logs, do not post any Log info after the line "Binary Images for iChat"
iMac 2.5Ghz 5i 2011 (Lion 10.7.2)
G4/1GhzDual MDD (Leopard 10.5.8)
MacBookPro 2Gb (Snow Leopard 10.6.8)
Mac OS X (10.6.8),
"Limit the Logs to the Bits above Binary Images." No, Seriously