Excellent discussion IMHO. I have mixed feelings on the color coding of the various individuals ie sub services, paid promoters etc. By doing that, IMHO, you are implying some sort of impropriety on their part and it was my understanding that was not the intent. The intent was merely "Let the reader be aware" and not "Let the reader beware".
Setting up the board identifying these people/entities should do the trick, however, my idea was simply to list the iHub logons in the iBox that offer these services & have no discussion or posts on that thread. No comments on individuals are required; it was simply a board to inform and by having no posts, the reader would be forced to read the iBox & get whatever info they required.
iHub is running a business and if there is a quid pro quo for letting these individuals promote their services/sites on iHub I have no problem with that...as long as I know who I am reading.