Hi Wade,
It seems like everyone is thinking about hugelkultur right now and for good reason: this is a great time of year to setup a new hugel bed. By spring it'll already have started breaking down.
I can't speak to earwigs. While I think we have them here they are not present in sufficient quantities to give us problems. We deal with squash bugs and cucumber beetles, and I have often wondered if the latter came because of my use of hugelkultur.
As the wood breaks down all kinds of insects and other life forms come to participate in that process. Pillbugs (rolly pollies) especially love dining on the rotting wood.
Sorry I couldn't give you more info. If you do try hugelkultur, I'd love to know how the earwigs impacted it. It seems to me that it's worth a try.
