1. This has indeed been posted many times.
2. I support being able to use heroes in war while upgrading, even though mine are max, simply because I think bigger wars would be a lot more fun.
3. Even though this may directly cause revenue to be lost, it can be argued that revenue could also be indirectly gained as a result of greater enjoyment of the game (less people quitting from losing interest during hero grind). And who's to say that gems being spent on gemming heroes (only for war) won't be spent elsewhere?
4. For those who say this will never happen, think again. It still may, to some degree, possibly temporarily at a cost. Confirmed by a Moderator in the fairly recent Q and A thread.
5. For those that say "join a clan that lets you war / learn to war with heroes down" this is not an ideal solution for most. My clan has 10-15 members opted out for hero upgrades at any given time. We enjoy winning wars, thank you very much.
6. For those that say "screw you, mine are maxed and everyone else should have to do the same grind as I did", well, they would still have to do the same grind, only difference is they would be able to participate in the most enjoyable aspect of the game while they do it, without putting their clan at a huge disadvantage (at higher levels).
7. I like popcorn.
That is all
