You can do this in google.com > Settings (bottom right) > Send comments. My translation might not match exactly what you see in Google US. I sent a comment abo

You can do this in google.com > Settings (bottom right) > Send comments. My translation might not match exactly what you see in Google US. I sent a comment about 3 months ago about a bug in night mode and it got fixed. No idea if my comment was the cause, though.