This is an old thread, I realize but....
...I have also been finding earwigs everywhere, inside and out. I've peppers, tomatoes, and some herbs in bags outside, and there were dozens hiding under the pots. I've a few seedlings and clones, and I found them on the stalk and in the soil. I've 2 flowering plants (at three weeks), and I found the (fucking) things hanging out on the leaves. We've even found them on the walls in the living room and in our upstairs bedroom! They don't seem to be causing much damage at the moment, but I fear that they will eat some, reduce yield, and I may never know. So, I've been killing them.
However, I now feel as though it is wrong to kill them. They seem to cause irregular harm to cannabis; they may provide some benefit by eating other, less-desirable, more harmful insects; they are
one of few insects that display "maternal instincts," mothers tending to their eggs, cleaning and defending them, and even providing food for their young. (see "Life cycle and reproduction") They do not crawl into your ears, nor do they eat brain. They are ugly and gross, yes; but if being ugly and gross is a good reason to kill an individual, most of us should run and hide.
The only thing that can justify our killing another sentient creature is, it seems to me, when that thing is causing us harm in some significant way. So, if the earwigs are not threatening the plants, and the earwigs are causing no other harms to plants or humans, then it would be wrong to kill them.
Sorry for the digression, but I think it is important for us to be reflective and not simply allow ourselves to react violently when no such reaction is required. I am guilty, and this is my attempt to combat this nasty human tendency.
The point is this. I also have earwigs, and there is very little information about the relationship between earwigs and cannabis. I will try to keep a close eye on my babies and the number of earwigs, and I will report about how things seemed to me.
In the mean time, here are some resources that I found helpful:
--http://www.ipm.ucdavis.edu/PMG/PESTNOTES/pn74102.html
--http://www.entomology.wisc.edu/diaglab/hilites/a3640.pdf
--http://insects.tamu.edu/fieldguide/aimg31.html
--http://www.uri.edu/ce/factsheets/sheets/earwig.html