Paypal is returning the primary email when the Donations app checks to confirm it's the right account.
i might consider it but the main problem would be that some people don't use the Commerce app and only use the Donations app.
Are you wanting to lock new comments on a video?
Haven't released a new update yet but can provide a patch as it's a simple fix. It's not showing videos to guests, it's just showing the widget without any videos.