Raiding?

It's absolutely pointless... Why add it to the game?
The resources you gain from raiding oases is only useful to Lv1s and Lv2s and they don't even have large enough army to take it.

[TradeWindW]

yes, it takes long being farming oasis, but at the same time it is a "easy" way to get resources if you dont have money to buyed them.

It was literally only put in for the low levels. Although perhaps not THAT useful, it's much faster than having to wait for the resources to accumulate when occupying oases. I have a feeling this wasn't for the players who can't occupy oases, but the ones who need the resources right then, but don't have the troops for fort farming. That grey area in account development can be sped up quickly because of this. There are still new players who don't quite know all the tricks to build up quickly whom this will benefit.

You get 3700 resources for raiding a lvl 9 oasis, barely more than if you were to farm a Ha account, and anyone farming Ha accounts won't even be able to attack a lvl 9 oasis. Utterly useless feature.