Justification on upper skewed scores

Recently I've noticed that I've been rating my series awfully high. Examples:

• Love Live S1 - 8
• Saekano - 8

Unfinished but prediction:

• Oregairu 2 - 9
• Shirobako - 10
• Hibike - 9/10

Am I handing out high scores too easily? I don't think so. My justification is that I only choose to watch high quality series now. Given the limited amount of time I have, there's no point wasting it on mediocre or average series once it's identified as such. If I enjoy watching it, then I will watch it. But there is no point finishing something just for the sake of it.