Only the active will stay top. It has nothing to do with "farming", if you call being active and GvGing other guilds regardless of their rating, farming, then I must say that I have lost any hope for finding a common tongue with you and we have to agree to disagree.
Look into the Palantir for a second. I know it is hard facing the truth. But just for a second, take a good honest look on the current state of the GvG ladder. Dead, rotten to its core, a barren wasteland. You could just nuke it by applying a complete rating wipe, similar to the PvP Ladder. But would it truly solve the problem itself? No, all it will do is just cut the healthy and the dead, like amputating a festering wound before it infects the whole body.
Guilds will always fall inactive at some point. And the rating is vanishing with them. Rating wont be lost with my idea.
I am open for many great other ideas aswell. But as of now the only other viable solution would be a complete wipe. Not changing the ladder at all is like ignoring progressing cancer. And in its current state its critical but still healable.
On your first note I quoted - that's exactly what farming is. The idea that you most likely target guilds that won't hit back, and some that may hit back (but have probably failed from past hits), is the exact idea and argument of farming. If you want to be able to hit the higher up guilds, then start recruiting members outside of your group. You shouldn't be able to expect to be first place because you're active and leaving yourself with only one grouping of players that can hit or retaliate.
As for what you've said about the GVG ladder? Yes it's dead, but obviously you didn't read my post before. I feel there are a few main reasons it's dead.
1) Most of the hardcore GVG'ers who care about rating have come and gone. I can name many of the players who have left that were in guilds in the top 10 who really cared about winning and the pure art of GVG - not for RP.
2) Rating transfer is still off. We still do not get rating (even after the last update) for anyone that we hit in the top 10 that we can. I'm sorry, but there really is no reason for us to GVG outside of enjoying the rush of playing, which we do from time to time. When there is only stuff to lose by the small chance of 2% or a great GVG, there really is only defending
3) There have been no new RP items, and most of the current RP items have lost their shininess (due to new and better titan and inventable epics). While introducing new RP items will help create more activity in GVG, it still doesn't really help the meaning of GVG - going guild versus guild - not 2 on 1 player, not focusing on groups that won't hit back. RP rewards were the reason farming guilds were created and why players were paid for GVG.
4) If you want to see more activity in the top list - then create a rotating type of ladder like the PVP ladder. Keep one that has overall highest rating and then one that creates activity based (get more rating for winning against guilds who have higher rating). Make it so on the ladder, you can only hit guilds that have an active target within the past 15 minutes, and if all in the guild are offline for more than a day, you're guild is reset to 1000 rating. I don't care if oyu require guilds to opt-in or not, but reward the top guilds with additional RP or some special reward.
Rewarding GVG activity for just being active is getting RP to trade for items to sell or create. More rewards should be earned for being higher in the ladders. I would equate it to a global event. Players are rewarded for getting the required number of kills. However, being in the top 100, or even the top 3, you are able to get more / better rewards.
If you, as a specialized team, have a problem with not being able to hit the top guilds, you have 1 of 3 choices. 1) you recruit outside of your specialized range to be able to hit the top guilds. 2) you accept the fact that you may or may not be able to reach the top rankings in GVG. 3) you have a request like this where you try to get the top guilds who have earned their palce to start losing rating and then start to reward mediocrity and activity.