One could argue that since Google is JUST as happy to take money from scammers for an ad for the keyword WellsFrago as the Registry would be to sell the domain

One could argue that since Google is JUST as happy to take money from scammers for an ad for the keyword WellsFrago as the Registry would be to sell the domain WellsFrago dot com ... I'm not sure either approach is technically safer than the other if you're prone to typos. I think (gasp) bookmarking the important sites you need is the only safe approach.