Ever since Plex switched up their username logins, I am now receiving spam email addressed to my Plex username which is only used and only ever has been used on Plex.
I want to opt out on you selling my information.
Take a look at the username you are using in this forum here. It has been like that since 2018.
You have it the wrong way around.
The assignment of user names to plex accounts which didn’t have one before was done to prevent issues like this.
However, the forum is almost completely separate from the actual plex.tv account database. So this automatic change was not performed in the forums.
Plex is not selling your contacts.
You didn’t have a user name, but only an email address as your plex logon name.
Which then lead to your email address also being used as the user name in this forum, when you posted the first time back in 2018: "username" is offline or unreachable - #2 by larrydstevens_gmail.com
Writing a scraper which automatically trawls through this forum and collects the usernames is nothing special. Any script kiddie can do that.
Then filtering from these all user names which look like an email address, (save for the underscore) is equally trivial. Finally replacing the underscore with an @ is trivial as well.
Anybody could have done it, and many spammers in fact do it.