Ermmm, Quite a lot of people are missing the point, actually comparing results means nothing, because each to their own and such, everyone is different in academic ability.
We know for a fact that Exams in general, in this case GCSE's have been made easier than prior generations. There is evidence for this, such as the large increase in people capable of applying for university.
Whether or not GCSE's are too easy, that depends. The entire school mentality has change from say 30 years ago, which has also led to people not putting in as much effort, and in turn the general decrease in difficulty. I would not say they are too easy as they themselves are a product of what current teaching methods and mentalities are churning out.