The main account has > 50k edits; (77000). See the request here. The request is accepted so we would appreciate if you could reserve for us a window so this rename can be performed and simultaneously supervised. Thanks.
|Open||None||T169440 Pending global renames in need of sysadmin supervision (tracking)|
|Resolved||Marostegui||T168776 Global rename of Green Cardamom → GreenC: supervision needed|
Looks like most of the edits are on enwiki as per: https://meta.wikimedia.org/wiki/Special:CentralAuth/Green_Cardamom
Please ping me before you want to run the rename, so I can keep an eye on the databases
As long as you keep this updated with your steps, that should also be fine.
We are on freenode, channel: #wikimedia-operations
But if you want to start now, please do so. Just write here when you start, send the meta url with the rename progress so I can follow it, and write again once you are done :-)