There have been studies that show this isn't true -- any particular session from a Tor exit relay is about as likely to be malicious as a session from a random

There have been studies that show this isn't true -- any particular session from a Tor exit relay is about as likely to be malicious as a session from a random IP, and the most popular sites accessed are things like Amazon and Facebook (the latter of which makes up approximately 50% of onion service traffic, as of ~4 years ago). I, for one, use Tor for most web browsing that doesn't involve logging in. (As a hint for people who dislike captchas: I don't actually see them as often any more, but for static content in particular, you can fall back to archive sites to circumvent them.)