No of cource not, It is a mechanic in the game afterall.

one way of farming 1m coins per day :D

I do the same, don't feel bad.
It's especially hilarious when they try to get away, can't, and get plundered repeatedly like 3-4 times in a row. . then they finally just quit and refresh HAHAHAHAHA

no.

They plundered other players, those players who lost 15 coupons were also upset.

Coupons > Coins

They only lose coins (and group point). And it's also part of the game.
I plundered occasionally, but it seems that there are way too many plunderers in my server.

I have to do convoy most of time, but I pretty much baited those who wanted to plunder with support from my grp leader. In the end they got nothing. And yet they still complained in the world chat that we are stingy. :L This post was last edited by Petrichor

They can still hide in the map and wait until they are not red anymore.