Airbnb says the review is 4 stars but the review is actually 5 stars

[Julien53]

Why airbnb says the reviews is 4 stars if you have 3 point with 5 stars and 2 with 4 stars. 

If you do the average you are more close to 5 stars than 4, so don't you think airbnb put to much pressure on the renters?

[Joan2709]

@Julien53 

It is my understanding that Airbnb rounds down for Hosts, but for Guests rounds up.

Not sure where I saw this? I think here on the CC.