My understanding is that Lemmy bot accounts generally do not federate over to kbin. If you want to see an example of a bot making regular posts, you can check out [email protected]. Prior to the lemmy.ml/ani.social defederation it posted in [email protected] – i.e. go to https://lemmy.ml/c/anime sort by new and look like 10-ish pages back (currently) and you should see a bunch of bot posts (sometimes drowning out posts from real people). You can see it posting to https://ani.social/c/episode_discussion currently as well; there are a lot of bot threads and very few comments. When the bot had an outage a while ago (prior to the defederation) there was a discussion with various opinions on the bot and how/if it should operate. I think I’ve also seen another thread about it as well with more discussion, but I’m having trouble finding it again.

Edit: Just remembered another example. @ITNbot is a kbin bot (on a non kbin.social instance); you can see its behavior here – https://kbin.social/m/[email protected] – I blocked it a while back since seeing all its threads in new was bugging me at the time.