Sometimes you need to add any link which will be not visible for search engines. Usually people use
rel="nofollow" for this, but, maybe you don’t know that search spiders will go to such link in any case.
You can prevent this if you use link hider shortcode of theme (from 5.1)
[wpsm_hidelink text="Click me" link="//yourlink.com"]
Users will see link in this place as usual, search spiders will see just text (not link). Maybe, such way will not work in future, but currently you can use it carefully.