Quote Originally Posted by Jubez187 View Post
http://massively.joystiq.com/2014/07...ts-are-broken/

and reddit mirror

http://www.reddit.com/r/ffxiv/commen...ts_are_broken/

Didn't see it posted here so either it never got posted or didn't get the read it deserved.

EDIT: The "ruining" is more or less my own words. Not the words of the author.
In the article it says that players have no control over spawn conditions which is an outright lie. If you talk to the "Hunter-Scholar" NPCs in each area, they will give you clues on how to spawn each one. Or you can look at This cheat sheet I found.