Blind liker refers to someone who "likes" all your posts on Weibo or WeChat Moments without even reading them.
“盲目点赞党”指在你所有的微博和朋友圈帖文点赞，却并未真正读过博文内容的人。
Some of them are doing this to tell you that they really care about you, while others are just trying to get some attention.
有些人这么做是为了让你知道他们真的在关注你，而有些人则纯粹是在耍存在感。