Three issues with Abandoned mines fungus/red & yellow
spores:

1) Deafen/Insanity/Forget lands 100% of time. No chance to
avoid/resist them.
2) They add up as extra affects (I got 2 insanity affects in
log below).
3) They can make the affect permanent (i.e. Physical effect:
'insanity' for -1 hours.)

Log:

You are affected by:
Skill: 'bark skin' modifies armor class by -76 for 46 hours.
Skill: 'acute vision' for 46 hours.
Physical effect: 'insanity' modifies wisdom by -5 for 26
hours.
Skill: 'warcry' modifies save vs spell by -12 for 22 hours.
Skill: 'warcry' modifies hit roll by 6 for 22 hours.
Skill: 'protection heat cold' for 17 hours.
Skill: 'deafen' for 2 hours.



You begin creeping in that direction.
The Underdark
 
[Exits: south west]
A patch of yellow mold grows here.
A fine mist of spores shoot out from the yellow mold to land
on your skin.

You are affected by:
Skill: 'bark skin' modifies armor class by -76 for 46 hours.
Skill: 'acute vision' for 46 hours.
Physical effect: 'insanity' modifies wisdom by -5 for 30
hours.
Physical effect: 'insanity' modifies wisdom by -5 for 26
hours.
Skill: 'warcry' modifies save vs spell by -12 for 22 hours.
Skill: 'warcry' modifies hit roll by 6 for 22 hours.
Skill: 'protection heat cold' for 17 hours.
Skill: 'deafen' for 2 hours.

>1) Deafen/Insanity/Forget lands 100% of time. No chance to
>avoid/resist them.

Incorrect.

>2) They add up as extra affects (I got 2 insanity affects in
>log below).

Fixed next crash/reboot. Insanity was the only one of these that could stack; now it won't.

>3) They can make the affect permanent (i.e. Physical effect:
>'insanity' for -1 hours.)

By design. You didn't really think that was an accident, did you?