@shortridge I use the plus email trick: register using the address username+sitename@email.host.com
most email servers (including Gmail) will ignore +sitename and send the email to username@email.host.com.
if I get spam from the site, I just block all emails to username+sitename@email.host.com and move on with my life
@gi124 @shortridge Back in the 70s-90s my mom would slightly misspell her first name in a different way with every magazine/catalog she intentionally signed up for, to see who was selling her name.