If you look at the tooltip for the up-vote button, the guidance says things like "useful and clear" and "shows research effort" and everyone has a little different idea of what that means. Some folks vote based on the "quality" of the question and some folks vote based on how interesting the question is to them. This isn't a very high quality question - it doesn't look like the asker tried to answer their question before posting it here - so I can see that some folks would think it shouldn't be up-voted.
Personally, I would not chide someone for their voting habits. I think everyone should mind their own votes and let other folks vote according to their own conscience. Voting is anonymous for a reason and I think it would have a bad effect on the community if some of us started pushing others into voting the same way we vote. I realize this is a cultural issue though and that some cultures put much more emphasis on people working together as a team while Americans tend to value being independent.