Disclaimers and user acceptance does not remove liability for slander, particularly against third parties.

In fact, in most EU countries "the user acknowledged" works only for a very small subset of stuff, precisely because our lawmakers know that the strong party in a contract would use that to get away from every legal obligation.

Disclaimer: By reading this comment you accept to transfer all your properties to me, effective immediately.

Anyone can write a disclaimer, that does not make it enforceable.

Luckily it doesn't work like this in the EU.