Just to be clear for everyone - I don't endorse people; in writing, on the web or for others to repeat in general conversation or in work applications.
Conversely, I do not expect to be endorsed by anyone else - so if someone says something about me make sure to check it out for yourself. You are welcome to make up your own mind about my work, skills and ethics by having a conversation with me or reviewing my previous work.
The only possible way I would pass on information about someone is by speaking with the concerned third party in person or in a phone call. Anyone who says "Paul says this" or "I know Paul and he gave me your details" or anything at all really, you should red flag the information.
Ring me and I will tell you straight up about anyone, but do not take anyone's word on who I know or what I think about them or their work ethic. Get my opinion from me directly.