Forum Sitemap Priority Manager
 

I can't find any guidelines on how to set priority.

Quote:
This page allows you to control the priority setting in your XML sitemap on a forum-by-forum basis. Setting a value for a forum will change that forum's priority setting as well as the threads within that forum. While you should set important forums to a higher priority, you should not set a high priority on too much content. Forum

When you set the priority to zero it will not be indexed?
forums that are invisible for guests set priority to zero I guess ? But does it hurt when it's not?