Link that lets me send a message to a YouTube user
to send a message to a YouTube user I currently have to:
1. click on the channel
2. click on the 'About' tab
3. click 'Send message'
what I've been trying to find for the last hours is the link that lets me skip step 1., 2. and 3. and brings me directly to the window that pops up after clicking 'Send message'.