I did a successful UCG run recently, and was attempting to get Plant Hater out of the run. However, I didn't get it and I'm wondering which possible cause might be responsible. Here's the things I can think of that possibly broke the conduct:

a) Merely picking up seeds;
b) Giving seeds to a farmer to up alignment a bit;
c) Using Survival skill (even though I made sure to only use it on water squares, since I remembered that bloated on land gets you seeds and therefore probably breaks conduct);
d) Stuff's broken, oops.

I made sure to never grab any herbs, and I never got the Herbalism skill. I ended up getting Alchemy, but never attempted to use it. Using Survival was only to waste time, since I messed up and did some outdoors hiking without my 7LB, inadvertantly (barely) passing Darknight.

I suspect Cause C most of all, honestly. Anyone get this achievement or notably fail to get it with some other set of possible messups?

Maybe, if C was the cause, it (and alchemy) can be refined to only mess up the achievement when plants are directly used. However, the achievement message implies that it's merely using the skill at all that can mess it up (quote, using "related skills"), not just using plants while using them. It's No Big Deal if nothing changes, since it's a minor point and adds yet more complexity for little gain, but still.