You said it in reference to someone not liking a show, and you got upset and whipped out a MAL score.
The reason why you think I don't care about your opinion, is because you do everything backwards. When there's a discussion over something that's based on factual stuff, you start throwing out opinions to disprove something, then counter that with "well it's just my opinion" as some sort of validation to ignore everything. When it comes to something opinion based, you then go and pull out things like MAL ratings and such instead of giving your own opinion over it.
That's why you think I don't care, because you're doing it all backwards.