I don't list series which were dropped after one or two episodes.
There are a lot of those.
I try to go beyond my subjective responses in my MAL scores; this means that I may, for instance, give a higher score to an anime I dislike (but think is generally good) than to an anime which I like but recognise as flawed.
As such, my pure subjective preferences are reflected in my anime tags, according to the following scale:
10 - Loved it.
9 - Liked it a great deal.
8 - Liked it, fairly unproblematically OR Loved some aspects, disliked others.
7 - Liked it for the most part, but...
6 - Didn't particularly mind it.
5 - Meh.
4 - Mildly disliked it.
3 - Actively disliked it.
2 - Hated it.
1 - OH GOD MAKE IT STOP