Without opt-out, this is going to tear many clans apart
First off, the concept here sounds awesome and thanks for the FAQs! However, I think there is a fatal flaw.
If there is no way for a leader to select which members to bring to war (or provide members the ability to opt-out of clan wars), you're going to rip apart a ton of clans.
For example, my clan is a mix of resource farmers and trophy farmers. In fact, this can change over time as an individual player's strategy changes. Mixing all of these people together is going to cause those who want to wage war to be really ♥♥♥♥♥♥ at those who want to farm and have their town hall sitting out in the open.
I've seen some people who want to save a war base and a regular base, but that would be unworkable since every time you added something to your village base, you'd have to do the same on the war base. I get that.
But some of these clans have been around for a while and have a great history. Right now, those who want to hunt trophies and those who want to farm loot co-exist nicely. Dragging those who don't want to wage war into the mix is only going to rip apart these kinds of clans. Can you imagine the dialogue within the clan when the war is lost by one star and it's because someone left their town hall outside to farm (or they're out of town and won't be able to attack at all)? Many clans like ours love the idea of clan wars, but won't participate for fear of this happening.
The simple solution here is to allow a clan leader to select who to send to the war. Alternatively, users can opt-out in their settings (but still spectate to cheer the clan on).
I'm a programmer, so I realize that things are not always as simple as they appear. However, this does not strike me as a difficult solution from a programming perspective. I imagine the decision not to include an opt-out was made from a game design perspective. If this functionality is not provided, I'd respectfully be curious as to the rationale behind that decision - seeing as it's likely to rip apart many happy clans.
Just my two cents worth.