Do you think it is posible to..

Perhaps multiple open tabs with "1" already entered in the send column. "ctrl+tab" and "click on send button" repeat?

I have sent 50 missions like that before. But it was 5 missions each to 10 cities of a player, out of which some missions were real and the rest were of 1 unit. I did that to conceal the real missions. That 50 missions took me more than 2 minutes for sure.

Seems like quite some infraestructure, and a lot of key clicks, in multiple and diferent forms, not to mess it up, sooner or later before you end up with all the groups... and a single mess up key, could either move the window, or open close a dialog, in short, adding a gap between some waves and the next one.

As expected , feedbacks are far more interesting than the straight votes for yes or no.

And regarding effectiveness, it's based on critical success/critical failure, no matter the size of attacker or defender. E.X trying to scout a town with over 2k defending scouts, could require some quite some scouts and not without risk of losing them.. while it can be scouted by losing some 99 ish, just by critical success hit. ( as any random factor, it could be achieved with the 1st, or the never, but on the average, i would say its around 1% or so).

HonoredMule wrote: Now the only reasons anyone would bother with such spamming (by hand or otherwise) is to be a pest (not very effective, since the person launching puts in a decent amount of effort and the target basically doesn't have to do anything) or under the belief that there's some rare chance of success in any attack no matter the odds that outweighs the cost of all the failures necessary to get lucky (a bit like playing the lottery, that).

All diplos have a small chance of critical success. It is independent of the target's defense score (at least from what I've seen). Therefore, if you believe the target has a high diplo defense, or you otherwise cannot risk a mission failure, you spam it with diplomats. 100-200 t2 scouts are cheap and practically guarantees success. The only caveat is that your opponent will know who sent the diplos by capturing the other failed 199.