I'm not sure, but I personally read the secret as less of... thinking kuroxfai should support the other comm as just ignoring it? It seems like a weird rule to make anyway, since anyone who wanted the doujinshi could just join kuroxfai just long enough to snag it anyway, if it was limited solely to posting it there. It has open membership and all. They could join, grab it, and leave. =X

I'm not aware of all the details, but I'm pretty sure I remember the other community being a really retarded mood by people who were being douches, but I can sort of see why someone would suggest that there's no need for eternal emnity and making rules that don't actually prevent distribution, only location.