I've never seen it, but if it is embedded and encrypted, how would one know? There are a few modules (I forget which because I've been away from the forum for a few months) that do list your SF email address in your log. All messages written on this forum do have attached an IP address that can be read by people with higher status. Strangely, it is an IP address in the Cloudflare IP range even if you are not using Cloudflare. I believe that whoever wrote the SF forum code for this advanced feature is mistakenly reading the SF IP address rather than the user's IP address. As an example, your IP address is showing as: IP address is: 162.158.154.109
Relax! No one at SF is out to get you. If you use the downloads for your own purposes and don't make the videos available for mass distribution, you have nothing to worry about.