This question already has an answer here:
I am a regular user of the IT side of StackExchange (StackOverflow, Programmers, Serverfault etc). In these sites you upvote and downvote question based on whether you think the question shows research effort, is useful and clear
meta.stackexchange.com the guidance is a little different.
Voting here works a bit differently from other Stack Exchange sites. On Meta Stack Overflow, voting is often used to express agreement or disagreement, not to point out a lack of quality or helpfulness. Please don't be concerned if you receive downvotes – members of the community may simply disagree with your bug, feature request, support issue, or the nature of the discussion.
I was also reminded of this difference in my recent meta question
Should the hover-text on the
meta.stackexchange.com sites be changed to reflect this difference?