Trying to build full-on real applications with
hypertext and its macros has never been a good idea in the first place. It keeps surprising me that companies that have all resources to build proper, native, efficient first-class desktop apps, opt for what is effectively a very advanced word processor instead. Some also insist that it's the only way of building desktop apps now.
This world desperately needs a modern native multi-protocol desktop IM client. By "desktop", I mean using fully native controls (appkit/win32/gtk, yes, three separate GUI implementations), taking advantage of multiple windows, and ignoring the existence of touchscreens. I may build one in the future.