[ajambrovic]

I totally agree you should conform to their request - remove the extension from the store(s?) and remove Slack from the name.

That said, if you can keep the code on GitHub, then everyone can download the zip and load the unpacked extension - you could even go one up and create a (shell?) script with a cron job that checks the diff e.g. once per day and updates the unpacked extension. With our without the script, there's a slight overhead for the end user, but as long as benefits outweigh the overhead, people will use it and everyone will be happy (or at least, not be able to do anything about it :D )