Dear Pinkish B,
Hiring for the company and separation from the company are the two private matters between a company and an individual. Whether quitting employment just after two days of joining was appropriate or not that the members of the social media cannot decide. Therefore, if the public broadcast is not made on the internal matters of the company, the better.
Suppose if you publish the details of the absconded employee on Linkedin, what will you achieve? The registered members of LinkedIn who have followed you may come to know about it. But further, what will be the end result?
Yes, if someone just quits the company just two days after joining, then it disturbs the company's operations. However, there could be compelling reasons for the selected candidate to do so. Otherwise, the entire episode could be a reflection of the wrong hiring. Therefore, improve your recruitment practices, check the seriousness of the candidate, then issue an offer letter.
Finally, a few words about your post. While writing a post, a checklist appears on how to write a post. It appears that you have ignored the post. You could have given proper background information in sequence. Therefore, the feedback to you is that please learn how to raise queries on a public forum like this. Though the interpretation has been made, it could go wrong too. Therefore, please be descriptive and not criptic!
Thanks,
Dinesh Divekar