I am thinking of leaving negative feedback for sellers that do not leave feedback

[pod!]

I currently have 20 items in my 60 day purchase history with no feedback. The rules state that a seller must leave feedback as soon as the buyer has paid. I know a good amount hold off with the intention of revenge negative feedback if they don't get positive, but even after I have left positive feedback, so many sellers cannot be bothered. 

So I think I may now start leaving negative feedback to all sellers who are breaking the rules, or simply cannot be bothered. Buyers deserve feedback too.

[red_magpie]

The rules state that a seller must leave feedback as soon as the buyer has paid.

You are mistaken. Feedback is voluntary on both sides and in any case should be left at the end of the transaction. Feedback isn't just about paying - many sellers have had buyers who pay, but then turn out to be a buyer from hell!

If you try to leave negative feedback because a seller hasn't left you positive feedback this will probably be removed by eBay, and you will receiving a warning for feedback policy violation. Buyers are not allowed to leave negs because a seller hasn't done something that eBay doesn't require them to do. And eBay doesn't require members to leave feedback.