Here's my stance on inactives, they should remove themselves from the guild while they're away, why in god's name some people feel entitled to stay in a guild when they're not playing or barely playing is insane, it costs you goods for GE with no return on those goods and hurts your chances in the GE competitions.
If they don't remove themselves then remove them with an invite back if they're a valued player and a message stating they're invited back when they can resume playing and fulfill guild requirements, if they can't understand why and have taken offense at being removed explain because it hurts the guild in GE, if they still don't understand revoke the invite and ignore them forever or until they get it.
If they go inactive without word kick them immediately and write them that your policy is to be informed when members are going to be inactive and invite them back and say if you become active again you're welcome back.
You should participate in GE immediately, everyone should pay their costs. Everyone should be working on getting an Arc. If anyone argues and does not do GE and pay costs kick them immediately and ignore them forever or until they get it. Now go my son and rule well.