Thank you for your perceptive insights, Hollis. It would be nice to believe that everyone was operating under the same guidelines and on a level playing field in the social media arena; however, Twitter has proven this is not so.
The basic premise of social media in general, and Twitter in particular, is that if you have something interesting to say to your audience and you interact with them on a regular basis, you can potentially reap whatever rewards (status, financial, fun, etc.) you seek.
At this time, Twitter may be far too concerned about promoting the brand of Twitter – playing it gray with their rules, as you so eloquently stated – at the expense of those who helped to build its brand: Twitter’s core user base.