I do web QA so my perspective is that the expected use-case would be that the controls are present by default and then offer control over hiding, although I guess the term hiding can be synonymous with remove. Not a large user base is going to use the plugin on a homeowners association website but the parameter options would be helpful.
My use-case is using the plugin similar to what a college or school might for notification only for posting to an area of the main website with no expectation of anyone replying, merely viewing. On Twitters end I have the Twitter account set to private which also enforces that no one can automatically Follow and tweet or re-tweet. If you feel inclined you can view the simple post notification I have it set up for at http://www.themeridianofpasadena.org/wordpress/.
Again thanks for the time you put in on your plugin.
Steve