Well.
I'd like to bump this, but the "Feedbacks & Suggestions" section is full of impossible suggestions.
You guys have to understand that Nulled.to is using IPBoard/InvisionCommunity which can't be a ton customized.
The "Contributor" usergroup is a normal usergroup created in the IPBoard base (Nulled.to) and it have specific permissions set to it - The "Aqua" usergroup only have the permissions to see the hidden content, and the same for the "Nova" usergroup. but the "Contributor" usergroup doesn't know if you're either Aqua/Nova.
The problem here is that the Contributor usergroup is for the normal users too (you don't have to buy Aqua/Nova to be a Contributor). So, if they made the hidden content available for the "Contributor" usergroup - the normal users who got the Contributor role will be able to see the hidden content without buying Aqua/Nova.
That's how it works
I'm sure this can be somehow solved by creating a custom IPBoard add-on, so maybe finndev can look at this.
The web developers will understand how it is hard to customize IPBoard since it is PHP encoded using ionCube, so the developers are limited to some API features only in creating such add-ons.