The problem with the + or . approaches is that a savvy person will simply remove the dots and anything after the plus sign.

Beware, this app may make you worse off. If you use a unique email address for each service you have an account with, you have to provide each email address to Permission Slip. When you submit an opt out request, the app sends all of those email addresses to the data broker. The data broker can now link all of those…

yt-dlp is another good option

Since when has infinity been a number?