I don't really remember, I uninstalled Glimmer Blocker after that post to see what would happen (because what better way to narrow something down to a specific app?) and the ad-downloads stopped. I figured I'd rather see an ad or two on the sites I visit than getting my Download-folder bloated. But if there's such a thing as "default settings" in Glimmer Blocker, that was what I was using since I did almost nothing to it.I don't think so. I have both installed and have no such files in my DL folder.
What filters do you have active? I have first three, without Site enhancements.
Edit: I installed it again to see, and this is what the settings are:

And this appeared the second I went to a site with ads:

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