Hey,
Can ebay track which Google account you are signed in with? I was thinking of keeping my google account on both computers (my banned computer and my computer without a trace) if that is a risk I can remove it.
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I am not sure about that, I tend to have sub accounts in windows and use a chrome browser in each one with each individual gmail account that I use on that account assigned to it.
That way I am safe if they have a way to see that when browser fingerprinting.
I have used the same google account before since I don't think eb tracks that info but as degsey69 mentioned, if you are aiming to keep things clean with browser fingerprinting etc, best to remove that