Question is as in the title?

What makes you to up vote an answer?

Most of my answers are with $0$ upvotes. I am trying to understand the reason. One of the reasons could be that mathematics that I written there is wrong/incomplete. I am *not* asking for that, I am trying to improve my understanding of mathematics. This question is about something where mathematics is correct but you still do not want to even read it.

For example,

Is length of an answer makes you ignore an answer?