You can always rejoin, I'm sure blue will get you back, but maybe this guild is not good for your personal tastes considering the new rules, I don't know.
It seems that battling in lower leagues brings better results than going higher where the competition is stronger, in the end you actually get better rewards playing in lower brackets.
I can understand the 500 DEC a season in a top 30 guild but look at where you are? Do you want to be kicking seasoned players out with Beta's and adding newbies that don't have a hope of getting in without paying through the nose? That's what Splinterlands is and we all know it. I am currently looking for another guild, and as I say... no bad feelings between us.
I hope they will patch this exploit up. Splinterlands is a pay to earn game, and as bad as it sounds my capitalistic viewpoint agrees it should remain so.