There could theoretically be a vulnerability in your browser that would allow them to infect you with viruses, but such vulnerabilities are much much more valuable used elsewhere (or cashed in through security research bounties). One I’ve seen is that the page further phishes you into downloading and installing an “update” to your browser that’s really a virus, or they simply try to phish you out of money, for example by asking you to pay the shipping costs again.

It’s also a way to build lists of who actually clicks the links, that they resell to the next sucker (scamming is suckers all the way down, they all buy The Next Big Technique from some guy), ensuring you will get further spam in the future.

There’s actually a fun technique to do to avoid further spams when it comes to voice calls. A little know fact is that elevator call buttons are actually just phones that have a phone number, and if you dial the number, it will automatically answer and you will hear whatever is in the elevator (generally nothing). If you pick up but don’t say a word, their automated systems will flag you as an elevator phone number and they will stop calling in order to stop wasting resources on calling numbers that won’t lead to money.