The "pb addbot" command has been corrected in the soon to be released new version of mEAn.
Here's a link to the compiled dll and so files of the pre-release version whoich uses the new "pb addbot" command syntax, just overwrite what you have with the new version.
pre-release version of mEAn for Windows & Linux
The "spamming" which shows the addbot commands and a notice that the skill may be overridden by mEAn's internal skill, is hard coded into the system. I never had a comlaint about it before. Out of curiosity I'm wondering why is it a problem for you?
As for a final release of the updated version - it is planned, but I've been very sick for the last few weeks, and at the same time I have piles of paying work on my desk which must take priority.
The pre-release version has been running on my two servers (windows and linux) for a couple of months now, so I am confident it is very stable. It is also very close to what the final release will be like.
Enjoy!
Edit:
A note about the updated mEAn is that the version number has (for some silly reason) not yet been updated, so it still uses the last released version number - which is wrong of course. I hope the incorrect version number does not cause too much confusion.