听说学豆瓣截图偷偷打专属标记

https://greasyfork.org/zh-CN/scripts/450739-%E5%8E%BB%E4%BB%96%E5%A6%88%E7%9A%84%E7%9F%A5%E4%B9%8E%E7%9B%B2%E6%B0%B4%E5%8D%B0-zhihu-blind-watermark

https://v2ex.com/t/877614

你去B乎就为了截图？