Well, since they are all connected, I am thinking of sending only 1 summary each day (or maybe even each week?) for the combination of all bots, and post it on the !MMB account. Big reduction of "spam" again, and still informing the users. Fun fact is that the users of the bots all appreciate the Daily Summary :-)
But they will still appreciate it if it is centralized of course. It will take a lot of work, as each bot is now logging all its use in its own regard, and then I would need to centralize it. But could be done.
What's your take on that solution? (totally appreciating your honest and valuable input here btw!)