> I dunno, if you type "download 7zip" into Google, the top result is the official website.

Until someone puts an ad above it.

Sure, but the answer to "How can the average 7zip user know which one it is?" would then be "do a Google search and use uBlock Origin".

How does the user know they are using the official uBlock Origin?

	▲	8organicbits 3 hours ago \| parent [-]
		The Mozilla extension store doesn't have ads, so it's the top item. It has clear download counts and a "recommended" icon. So the advice is to install it from the extension store.