Suggested action for Guild Quest exploit

Some people have been leaving their home guild to help a friend out with their guild quests. Then they return home to their guild. During this helping process people realized they can stack Raffle points working on level 1 boards in numerous guilds. I have a couple reccommendations on closing this exploit, and dealing with the aftermath.
First, Rovio has drawn a line in the sand. Everyone saw the email posted in game about this isue. Any accounts continuing to exploit this loophole should be banned, or suspended for 30 days.
Some possible fixes. Accts can only contribute to up to 2 guilds per season, and if you change guilds, you can no longer score on the previous guild, you are locked in to the second guild till season end. This would allow for merges, kicked players seeking a new home, and switching alliance, but within reason. It seems un-natural and unfair to allow players to help friends in other guilds sway the results of their guild "season," or whatever its called, however the intention here is/was helping friends. I dont think players who did this should be punished. I do think it should be every guild for itself, no meddling, but if Rovio would like to allow helping without exploitation, they could allow free movement and contribution of accounts, but the acct can only recieve rewards from the guild it started the season with. So you can help, but there is no material gain from it. I expect that administrative action will only be against the obvious exploiters who jumped from guild to guild, and gained an unfair advantage. I think any accts exploiting now should be banned, those who exploited already should be suspended to give other players a chance to catch up with what they gained by cheating. Rovio should define verbally, then develpmentally a stance on helping/meddling w/other friends guild season.