Nor is it a problem if you (like me) find pride and prejudice a bit boring.I don't think it's necessarily attention seeking to say you think the godfather films are boring.
If you rate them the same as fifty shades or the happening you are likely seeking attention though, in 43 years time the likelihood is that the happenings ratings will be even lower than 5.0 (on average) as for 50 shades making it through a few hundred years and be well regarded, I'll leave it up to your own estimation.
The whole "pure personal opinion" approach is a little infantile, I similarly find Pink Floyd boring I personally wouldn't rate them the same as Daphne and Celest due to that though, they are liked by and influence bands I do like, in the same way that Goodfella's probably wouldn't exist as is without the Godfather.