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"As for the homepage here, it is more like Reddit's homepage for logged out users (not tailored) than StumbleUpon's (tailored). Your "home feed" (the home icon) here is more like StumbleUpon, tailored based on people you follow or tribes you follow (you can switch between the two and even add your own filters)."
Yes, that was what I was saying, amongst other things.
Regarding sourced images, I am aware they exist, but they seem very rare. Most of what you link to are from a couple of users. Go over the gridview and see how many you don't find.
Are those on the current main page grid view?
I am not sure we are talking about the same thing.