I believe he's referring to this:
This conversation goes through many topics, as they are all tied together in some way. Brian answered in a surprising way, even going so far as explaining that the guild he is in on Classic did do GDKP runs and Brian actually enjoyed it. Blizzard does understand how this issue impacts Classic and is looking to make a change about the ban duration for gold buying, increasing it from 3 days to something longer.
https://classic.wowhead.com/news/bri...podcast-325022
That said, the ban for gold buying should probably be 5 to 7 days. It probably should just keep escalating, 3d, 5d, 7d, 9d, etc.