I am an established editor with somewhere upwards of ten years and somewhere upwards of ten thousand edits. I was reading on-wiki about the Rebranding proposal, and the the on-wiki link said I had to go to Space if I wanted to view important information or participate. The link brought me to a Space page saying something to the effect that I could not view this group or proceed without logging in. Clicking the login link brought up OAuth and the following message:

Your Wikimedia email is not verified. Please verify it at https://meta.wikimedia.org/wiki/Special:ConfirmEmail.

I of course understand and expect any email-notification or similar features will not work without an email. However I consider it a seriously inappropriate for the Foundation to start blocking important information and invitations-to-participate behind this wall.