I use "-" instead of "+" with a regex: "/^name-.*@mydomain\.tld$/".
Then I block them when I get spam after they get compromised. Many spammers already know to remove anything after the +-sign.
But I must admit that the biggest benefit of this setup, was listening to my girlfriend on the the phone explaining to someone, at some company, the reason that their name was part of the email-address:
"That is because if I get SPAM, I know that I can't trust you."
...
"Just make sure that you don't sell it, or get hacked."
...
"If you are already expecting to get hacked, or sell it... why should I do business with you?"
But I must admit that the biggest benefit of this setup, was listening to my girlfriend on the the phone explaining to someone, at some company, the reason that their name was part of the email-address:
It was priceless.