Instead of updating the entire plugin/theme (which often resets the "nulled" status), this feature lets you:

Legitimate premium products update via the WordPress dashboard using a license key. Nulled products have this licensing mechanism removed or redirected

"WPDating Nulled" might seem like a shortcut, but it’s actually a dead end. The costs of a hacked site, a destroyed reputation, and lost data far outweigh the price of a legitimate license. Build your dating empire on a solid foundation—buy the software, support the developers, and protect your users.

Invest in the legitimate plugin, use free alternatives, or reconsider your budget. But never, under any circumstances, install a nulled plugin on a live website.

Using pirated software is illegal in many jurisdictions and deprives developers of their livelihood.

The Dangers of Updating Nulled Plugins: A Guide for WPDating Users