When the person joins the community, the bot will spin up an account and greet them, hey welcome to the community!. When an event is rejected, the bot will explain to them what happened, (again this is just a mention, but the person can also follow the bot account for regular updates). The bot isn’t posting anything not directed at that specific individual. And when the person leaves the community, the bot will say goodbye and then take itself out of existence.
Discussion
All via kind1 posts, no DMs
Then I prefer the privacy and polyvalence of DMs
You could have each person decide if they want the bot to @ mention them in a kind 1 or just DM or both.
Nope. I see no benefit in kind 1s, only downsides. It's public and bad UX. Messages make more sense.