Yelp no longer a reliable source of information

The thing I like about tripadvisor and rvparkreviews is that I can see all the reviews of someone who reviewed a place. That way I can see if they panned all the other places nearby and raved about a specific one. That tells me they're biased. I also like to see if they have reviewed a place I have been to.

Yelp doesn't give you that ability. Why not let you see what else the reviewer has reviewed?