If it calls itself "open source" and I go to https://opensource.org/licenses https://opensource.org/licenses and can't find an approved copy of the license - or

If it calls itself "open source" and I go to https://opensource.org/licenses https://opensource.org/licenses and can't find an approved copy of the license - or I can't ask my favourite open source expert lawyer for their advice on it - then I don't want it to call itself open source.