Yeah, as
@sturose said, if you're posting regularly each day, you'd get an unmanageable amount of alerts for every thread that you've posted in. There's the "watch thread" link at the top of each thread - if you click it, you're automatically subscribed. If you're getting too many alerts, you can go to the "watched threads" (
https://www.blackhatworld.com/watched/threads ) link in your profile settings to turn off alerts for any threads you're no longer interested in.
It's probably quicker to manage that way than being auto subscribed and having to manually turn them off.