In all honesty I'd be more concerned about how many positive itrader feedbacks someone has opposed to the amount of posts they have. Posts don't mean anything when it comes to trading. You want someone established that has a few positive feedbacks under their belt IMO. But as Hello mentioned, we all have to start somewhere. In your case since you also have no proof of being an established trader you might have to trade with someone in the same shoes as you and ship at the same time, or find someone who has positive feedback so you know you probably won't get taken advantage of. In that case if your trade is smooth you should get positive feedback in return. Then your establishing street cred! Hope this was helpful