I get the impression that the relationship between HDN staff/moderators and HDzeta has soured. Not sure why, but it seemed to happen around the same time that they stopped hosting GBs for their Silver Collection. I believe the new GB system rolled out around the same time as well.
HDN staff and moderators have openly shared their frustrations and disappointment in the lack of communication in recent months (coming to a head during the Wonder Woman GB debacle), and HDzeta have increasingly scaled back their involvement with this site (dropping the Silver Collection GBs and dramatically reducing the GB allocations for this site).
Hopefully it’s something they can get sorted, as I’ve had nothing but good experiences with them through HDN group buys. I’ve grabbed over a dozen steels via their GBs, and would love to keep giving them (and especially HDN) my business.