Is it normal when i see a 0

Well that's kind of rude. At least read it.

You do realise people gang up on people here because of personal feuds. You are just following without thinking, and could be helping someone bully someone else.

Well that's just mean. People come here for honest criticism and you take a bird shit on their head. Give them a chance.

O. "IIN when I see a 0", actually, it's AN 0 not A 0. Perhaps that's the problem. If you saw AN 0, then you wouldn't need to screw around with it.

Why? Not everyone agrees with everyone else, quite often i see people thumbing down someone they don't agree with instead of saying they disagree even if the point is valid, the person who was thumbed down could have been saying something you agree with

I usually do the opposite

If the comment actually made a good point or was harmless, I thumb it back up.