Wouldn't it be better to have clans in the clan recruitment section that have no members, no valid website, or shown that they are indeed closed be removed from the clan recruitment thread? Instead of people looking through the complete list of clans that are officially closed, could maybe get a few more members to clans? This is mainly to the Staff.
Also another thing, what do you consider a official clan?
For me personally, I think an official clan has offsite forums, a Teamspeak/Discord for people to chat in, and already established thread on Zybez.
Others are just groups of friends or teams.