Doostang进不去了

今天想登录Doostang.com看看，结果发现进不去，会不会被国内封了？持着怀疑的心情我用在线PHP代理登录Doostang.com试了一下，悲观的事情出现了，用代理服务器能进去，奇怪了，为什么要封Doostang呢？没有任何违背政策啊，继续关注中ing。。。
Doostang is an online career community that connects people through personal relationships and affiliations

You can use Doostang to:


Look for a great job and share job opportunities with your friends
Target your search to find the most relevant candidate for an opening
Network with other community members to help your professional development