Put yourself in the mods shoes here. When you post we see this:
Says Newbie. Doesn't show join date, nor does it show how often you have searched. Even if it showed joined in 2013, it could have been that once in 2013 you joined to try to sell gear and then left and just came back now to sell gear.
The classifieds on here reach an audience that expects that the seller is trustworthy. Sure there are protection mechanisms put in place by companies that transfer money, but we do not support shady behavior. With only 7 total posts (as of today) you fit in the "might be shady" category automatically by your profile. Not at all implying you are, but this is what it can seem like to those that have nearly no time to make decisions.
There is a boatload of information here. We want you to read it, be a part of it, and even use the classifieds, but please understand why the rules are here and spend some time introducing yourself elsewhere on the forum to remove the automatic categorization.