Sounds like some people need to invest in better quality screen protectors with some decent adhesive then. I've never had a protector show any signs of the adhesive failing, though I do take all proper measures to make sure it adhers fully (ie, cleaning the screen with alcohol prior to applying the adhesive backed protector.). Honestly though, I am looking at the protectors on my cameras right now, the thought of the entire strip of adhesive(roughly a 3x3'' area) instantly coming lose and inadvertantly causing my LCDVF to fall to the floor seems a little silly. Wouldn't there be some warning signs before something like this happened? Like the edges starting to lose adhesion perhaps?
Besides, if your so worried about adhesive failing, why would you even consider the LCDVF's adhesive backed bracket? The bracket's surface area of adherence looks to be about 95% less than that of an entire screen protector. Just saying.