Why does Yelp keep having these shady business practices ? Is it because their fundamental model is bad ? I actually like the product and to me it is indispensa

Why does Yelp keep having these shady business practices ? Is it because their fundamental model is bad ? I actually like the product and to me it is indispensable if you are a tourist or have just moved to a new place. Source - Google "Yelp threatening businesses"