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A former Gizmodo writer changed his name to ‘Slackbot’ and stayed undetected for months
(www.theverge.com)
This is a most excellent place for technology news and articles.
I did a lot of web scrapping this week at work and it's looks like that character is used a lot on XPaths and CSS selectors. I only noticed it because VS Code put a yellow box around the character and give you a warning that that character is not a whitespace.