I personally think it would be an awesome feature to have on the site. Perhaps place it on the home-page so people have easy access to it.
The list would contain the last 10-20 things that happens to jobs and new users. Every time someone gets a new color it would automatically updated like "Adalynn Greenwood started at Hogwarts" and "Adalynn Greenwood just became a journalist for TDP". Not sure if a color in the text would be smart since black can't be on black and so on, but it would be a cool feature.
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