Well kermit, first of all that channel is registered, so better send an e-mail at
cservice-abuse@undernet.org and explain everything, mentioning some whois`, or the /names of that chann, or any sort of proof, and i assure you cs-abuse does it`s job. And about the glining thingy, well as you said, those are hacked boxes and opers can`t do much about them coz if they gline them, they will rejoin in a short while back. So there`s nothing much we CAN do about them. And i doubt it`s coz they are afraid of upsetting those abusers. But aside from this, thank you for atleast trying to warn any kind of abuse that u have discovered, and i hope you shall do the same in the future. We all are trying to do our best for undernet.
Cheers!