Usually if its free you the product. They scraping data. Do we think a guest user profile with the ability to install new software locked down by the owner profile is enough to thwart any malware or data scraping?
There's one site I have in mind which even has an android app, which to me feels like free falling through a redflag tree and hitting every branch on the way down.
Let's say you accidentally click a banner and it tries to download something to your phone. But your permissions restrict downloads. And you don't have any accounts tied to that profile. How risky is it? Obviously its a non-zero risk. But what have peoples experiences been?