I didn't...
For those who did and wanted to remove the Gleam from accessing your youtube (did you know what you have given up? See below after the link), follow the instructions given in this link (as submitted and posted in Paul Sellers' blog post):
https://www.youtube.com/watch?time_c...&v=-M5UYQ2i0F4
Access given to: gleam.io
Has access to:
YouTube
Manage your YouTube account
Basic account info
View your email address
View your basic profile info
Paul Sellers is innocent in this, I am sure, and I hope he will become more involved next time when his team comes up with another marketing drive.
Is this a molehill or a mountain? You be the judge.
Simon