What is the voting and points all about , how should I vote ?

This is actually pretty important to making the site useful. If a product is voted up it appears on the front page and its problems become highlighted to the community.
 

Here is a quick guide to how you should use the voting system.

The items with the greatest number of correctly listed issues or useful,entertaining articles should have the highest votes.

On product listings vote up

• Based on the listings accuracy.
• Any listing that has an issue you have experienced.
• A listing that contains information that the wider community should be aware of before purchasing a product.
• A listing you believe to be correct because you have information that confirms the contained issues.

Do not vote up items because you like or dislike the product. This is not useful or helpful

On product listings vote down if

• the listing is not accurate
• the list of issues has a manufacturer supplied fix. (please indicate this in the comments)

Do not vote down items because you like or dislike the product. This is not useful or helpful

Vote up Comments on product listings if

• They have requested an additional issue is added and you know it to be correct or have experienced it yourself.
• They have stated that an issue has been fixed by the manufacturer and you can confirm that the fix works.

Vote down comments on product listings if

• they are false
• they are misleading
• it is spam
• they are attempting to give a positive review within a products' issues list (that is not what the listings are for)