two things.
1. no in game macro system, but hardware macros are allowed which are far worse and create an even more unfair play-field because not every one even has access to them with out spending a bit of cash on 3rd party products.
2. no add on API for true total UI customization, got to be the single stupidest decision ever, burden in house developers with total workload of UI design rather than create an interface to have a pool of 1.3 million do it for free