Good one. If you have thought of sharing profits of the website with your Customers then your company will definitely get the benefit of this. However, according to what you have said, it is more like a discount given to customers. Now the question is, will you offer discounts to new customers or existing customers
If you are offering discounts (profit sharing) to existing customers then it would be a good option and most of the companies do this in order to maintain long term relationship with customers. However, if you are offering discounts to new customers then this would be called as a promotional technique or something like that (it's not a bad thing, infact, one can do this in order to get more sales and customers

).
If you are offering these discounts to customers (whether, new or old) it's good, however, according to me, you should make sure that you offer quality services and products to customers and you should make constant efforts to improve the quality of services and products so that you can maintain long term relationships with your customers.