congrats on your rfc! i'm curious as to whether the authors of RFC 8600 knew about an earlier Security Information Exchange (from 2008, at ISC) when you were choosing your terminology?

https://www.farsightsecurity.com/solutions/security-information-exchange/

see also:

https://www.jstage.jst.go.jp/article/imt/6/1/6_1_241/_article

i very much hope and expect to see your XMPP-Grid supported in MISP!