EA Joins the Sony EULA bandwagon
ngohq.com
ngohq.com
If there's the slightest doubt as for whether you can even sue you'll be fighting on two fronts: first against the question of whether your lawsuit might be void and then the issue you're suing for itself.
Lawsuits are PITA and lawsuits for the sake of just suing are doubly so. Everybody knows it. It's just logical to try to scare people off unless you subscribe to the school that tries to minimize legal hassle by not giving too many reasons for people to sue you. But still some assholes will if you operate in litigious cultures.
I'm not even sure whether someone can waive their right to sue by signing a single sheet of paper labelled "Waiver of right to sue".