The question about Katoolin has not been closed, and now it shows that there aren't any close votes. I think the root of the problem is that new users who want ask a question about using Kali Linux tools on Ubuntu search for an appropriate tag, and all they find is kali so they read the kali tag excerpt which says:
Questions that are only about Kali and not about Ubuntu are off-topic here! Please ask them on Unix & Linux Q&A.
Then they give up and don't use a Kali tag because there isn't a separate tag for kali-linux-tools. Since there wasn't a kali-linux-tools tag, I made one and suggested that it be made into a synonym for katoolin. If you are a user who a total answer score of 5 or more on the katoolin tag, you can visit the 'katoolin' Tag Synonyms page and vote to make kali-linux-tools a synonym for katoolin.
Update: The question has been used as a duplicate link for questions about the same problem like this one: Distribution Name Incorrect which proves that the problem in the question is reproducible. Rinzwind's answer is the more specific one for this question.
