Has you have noticed no password is required to post streets for sale. I've choose this way for your security (I will never ask your MCS password) and to keep it simple and friendly to use. I just assume most people most are good and will post offers with their user only and so far this has been working great :)
But then some people started posting user streets for fun. I don't think this is a big problem since you just have to reject them and ask me to remove these fake offers.
What did I do to address this?
Two things:
1) I've made some changes to prune fake offers more quickly and efficiently. You just have to report a fake offer to me at marketpoly@fridaycode.org
2) The premium user system; when you are premium user I assume you are the real MCS user because no one would pay to post fake offer. And then you can prevent other users from posting with your user and also to delete offers (screenshot below).
So premium users can protect their login.
What could you do?
Well, if you really like MarketPoly make a donation of whatever amount you like. But to ask for premium user the minimum is €1.5 EUR. I ask minimum 1.5EUR because deducting paypal fees I get 1.10 EUR and less than that is just throwing money to paypal fees.
Total Amount: €1.50 EUR
Fee amount: -€0.40 EUR
Net amount: €1.10 EUR
I think I'm not asking that much to support this website and my work in it.
See how to apply for premium user here
http://marketpoly.fridaycode.org/apply_premium.php
Plus, when becoming premium user I give you a street of your choice from the one's listed for sale at wherever price you set no matter how high the other bids
http://marketpoly.fridaycode.org/offers.php?username=marketpoly
Thank you for your attention,
André