I think it would help against leechers and bots if nulled would ask new users to fill a quiz with dynamic questions for each registration
for example:
"What is leeching?" - 4 different answers, one is correct
"Which of these options is NOT allowed on nulled" - 4 different answers, one is correct
"Write down the slogan from the Nulled logo" - text field for the user to enter "Expect the unexpected"
stuff like that would basically fuck over bots if the order of the questions changes each time someone signs up and the questions get updated every month or so
If you fail to answer the questions you get a 1h tempban from registering, if you fail again a 24h ban and so on