That's not science :) However, you're right: in the article, it's not clear how we decided to consider the experiment as successful: we called a meeting with a

That's not science :) However, you're right: in the article, it's not clear how we decided to consider the experiment as successful: we called a meeting with all the team and asked everyone something like: "Do you think that the situation on Slack is better now?", and the majority of people said "yes". I added a note at the end of the article to address some of the comments ;)