But, there were cases where enrolment in campaigns done by "invitation". When managers are considering other "establishments" for enrolling, why not "hodling"; which is the whole point of this topic.
I don't think you read my reply because I explained why not. There's a couple of great reasons not to do it this way:
1) It doesn't necessarily add anything to the value of a post.
2) Its an inconvenient, obtrusive, and plain weird thing to prove with every post.