While testing bots capabilities I couldn’t find a way to make a bot joining a channel. It would be useful to use channels for broadcasting messages outside chatmail server. Think of use cases like blogging, listening to multiple channels, broadcasting to multiple bots, etc. This is not essential, but I don’t think it’s hard to implement.
Managing multiple bots may be covered by the groups.
A bot can join a channel.
Good idea. The reverse direction would then be:
this is up to the bot owner, if they really have a reason to support you adding the bot to a group or to a channel they can allow it, if they don’t want it, they can even auto-leave groups if you try to add the bot, for the channel, the bot could support that if you send it the invite link of your channel in private it joins it
but for the use case you mentioned of “broadcasting to several bots” you can do that just with a normal group, the main reason to have a channel is so other don’t spam, this is not a problem with bots