He wants a small script to hide the email address from the caption in a conversation window for example, and/or any other place where the email might be visible (eg: toasts), so he can safely chat in public areas (eg: net cafes or even in a conference where his monitor is projected on a big screen, etc.).
see:
how to hide contact's email?
Note for those who wants to make the script: take in account tabbed chats. It's possible you also need to clear the caption of the hidden Plus! window which 'holds' the tabbed convo windows.
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