People making claims about Twilight is really beginning to grate on my nerves D; Not statments of opinion; the kind of claims I'm talking about don't begin with "I think". They are claims, stated as fact.
An example of a statement of opinion might be "I think Twilight is awful". An example of a claim might be "Twilight is awful". Or, conversely "I think Twilight is perfect/Twilight is perfect".
The problem with these kinds of claims is that they are completely subjective. あなた can't make an objective claim like "Twilight is awful/perfect" based on opinion, it doesn't make sense :(
So the amendment I propose is simple: begin statements of opinion with "I think", または whatever variation on this is appropriate (if any). Is that fair enough? :) I know many of あなた already do this, but just as a reminder to the few who don't.