A breakdown was actually just posted on that thread an hour ago:

    And in terms of numbers, out of the $1.2M annual costs we mention there, here's the rough breakdown:
    * $360K/yr – Trust & Safety
    * $250K/yr – Other folks, covering program management, legal, compliance, finance, IT, security, dev
    * $240K/yr – Server and SRE
    * $170K/yr – My salary, covering fundraising, open governance, community relations, biz ops, and people mgmt
    * $150K/yr – Matrix Conf + other events
    * $30K/yr – Assorted expenses like travel, lodging, productivity infra