Not at all! Your points are valid, other people’s concerns are valid, federating is not a critical feature of this project, and we don’t need to rush.
Said that, I already skipped my own decision to federate Welcome Mel as TSMN admin! 🎉 – which is 100% justified and no regrets. 
I am turning the top post into a wiki, to document what this ActivityPub plugin does and does not in plain words. Also to document our guidelines for moderators and administrators about when to federate posts and with what settings.
I can explain what I know in my evening, with time and mental peace. If anyone wants to start editing and/or compile questions, that would be great.
Also, we just upgraded discourse, and there were a bunch of updates to this plugin. Very nice to see that the Discourse team is working on it!
3.5.0.beta2: Review Queue, Welcome Banner, Admin Interface, and more - Announcements - Discourse Meta and specifically:
(I still don’t understand everything, but I keep learning with interest. 
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