a limited description of IOCs is at https://about.iftas.org/library/known-spam-fediverse-services/#Coordinated_Network_Spam_Accounts
Some background on the ISAC: https://about.iftas.org/library/social-web-information-sharing-and-analysis-centre-sw-isac/
And I'm open to contact off-network to discuss implementing MISP, although that would need to be couched in the network's/platforms' ability to ingest and react to shared intel.