Apply automatic discount to tagged customers

[hardw]

I am a big fan of Shopify, however not having an automatic discount based on customer is a big mistake, without a doubt this should be a basic feature on Shopify, worth noting this function is offered on almost all ecommerce platforms these days. Yes there are apps which can fulfil this function, however as we all know installing apps for every single function will slow your site down and potentially cause unexpected issues/conflicts.