When I receive a request for a read receipt on an email message, I
Ignore it
11(84.6%)
Send it
2(15.4%)
Well. Not so much opinions as An Opinion, which is that I loathe them. I have never ever sent one. To me an email message is like a paper letter in this way. Once I have sent it, it's up to the recipient when and if they read it and choose to respond.