I suspect that any frustration shown by regular users of the forum is that both concerns expressed in the quote above have been regularly and comprehensively addressed by the developer. Development of WinScriv v.3 and MacScriv v.3 continues, and minor updates will come next week for Mac v.2 and Win v.1. The developer has been clear in stating that feature parity between Mac and Win versions of Scrivener is a goal but is still some months away, and I believe I am right in saying that WinScriv has had 9 updates since release, at no extra cost. For more see: Is *Negging* Windows the Goal? [On Cross-Platform Equality]
As for building a better editor, that is what MS Word, etc., etc., are for. My final edit is never done in [enter your word processor of choice]. My formatting is. Developing a better editor would take an enormous amount of time, and would seriously delay the release of the next version for both platforms. I for one would rather see Scrivener continue to progress as an outstanding writing tool.