If the quality of the Dhamma was determined by popular vote, then this may have some practical use.
However, since realistically it's not, this functionality is only likely to create tension and turn the art of posting into a popularity contest.
That said, I don't know how we could do it even if we wanted to... I'm not sure the platform supports it.
“I hope, Anuruddha, that you are all living in concord, with mutual appreciation, without disputing, blending like milk and water, viewing each other with kindly eyes.” (MN 31)
What is the final conviction that comes when radical attention is razor-edge sharp? That the object of the mind is mind-made (manomaya). (Ven. Ñāṇananda)
"If you have always believed that everyone should play by the same rules and be judged by the same standards, that would have gotten you labeled a radical 50 years ago, a liberal 25 years ago and a racist today." (Thomas Sowell)