I just posted this message on the Safari feedback page, let's see for a change if I get a reply this time:
"Dear Safari team,
I have asked this question many times over the last several Safari updates, but have yet to hear back from you:
What's really the reason you have removed favicons from Safari tabs?
As a long-time Mac user I fail to understand why you would impose additional complexity on so many of us who have complained about this simple and so helpful feature of having a visual aid to quickly find the one tab I'm looking for among the many I have open.
Many of us unhappy Safari users have used SafariStand to get favicons back, but macOS 10.12 has now closed the door for this workaround as well.
Why must Safari be the only Mac browser that doesn't offer this feature?
Please let me know what I can do and help to bring this feature back.
Thank you."