Shane how many players you think are going to come up with this "gaming the game" technique.
You really said this because you really believe it? Like with Gina, perhaps check in some weekday mornings around 8-10am cst?
I could be considered AFK merely by upping and alting from a rear base towards some action.
Here's the easiest way to game it:
While the ftrs/gvs go "AFK" for... 5 mins... 3-4 boxes of nice buffs, say b-24's up from 2 sectors away for the same or even differing targets (b24's wf easy) by the time they're close in, they've been "AFK" and suppressing ENY for the fighters and gv's that launch when those buffs are closer to target(s.)
Yay, fighters not under ENY, buffs not under ENY. Of course, once both waves are in air and active, eny kicks in, but only for those late to the party.
The mission editor could even facilitate this since you can create two separate missions with differing launch times. Join mission and wait with no input, "AFK" until launch.
See how easy that was? Especially when it's say, 14 v 4 v 3 where those 14 concentrate on one of the two smaller sides, 14 v 4 or 14 v 3 basically. 3-4 "AFK" on that 14 side can lower the eny enough, fast enough to give them much nicer rides vs those small siders.
I think 30 minutes is a good timer compromise, because that means you're really AFK, not just grabbing a beer or checking your email while in tower or on climbout.