pponyo's honest review, Start a clean collaboration and smart Slack life course

I had used Slack as a community tool by chance, but I found out that Slack is used as a collaboration tool in the workplace! I took the course because I thought it would be good to learn about collaboration tools before getting a job, and it was very helpful. Thank you for letting me know that Slack can be used as a useful collaboration tool, not just as a community!

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