There was already a system of followers and it was useless. The only thing it would do would be to further distort the scoring systems, because users with multiple clones will follow themselves and have an army of fictional followers. Just like now the votes and comments made by users who are the same person are manipulated. If it is done it would have to be done well and it is one more thing to worry about, which would take time and personnel to maintain it.
I think there are more important and urgent things to which CGT should dedicate its efforts, such as fixing the search system, or the model scoring system. You should avoid habitual behaviors such as manipulating the punctuation of the models including 100 times the same image and a long text in the description, taken from Wikipedia. You should make it mandatory to fill in the model information, which is most often left blank (number of vertices ...) and is something buyers want to know. You must improve keyword filtering, streamline the management of sellers registration that is currently 15 days. And above all, fight against the fraud that floods us, and that is getting out of hand.