Different Demand?

[RisteMakedonski]

How come sometimes there is a demand for routes but it is significantly lower for the trip back? Wouldn't it be the same because the passengers need to come back?

[Kontio]

How come sometimes someone posts a new topic even though the issue has already been discussed the very same day?

Here is some info:
https://www.airwaysim.com/forum/index.php/topic,5095.0.html
https://www.airwaysim.com/forum/index.php/topic,4897.0.html