Alternate formulation of the problem: instead of trying to a)
reinvent the wheel and b) force your teammates into using the interface you have (or anyone else has) designed, no matter how slick,
Let them write their blog posts in Microsoft Word, iPad, their email client (I've written some pretty good essays using Gmail), charcoal stick and parchment, or other tool of their choice. Then have them email,
sneakernet, carrier pidgeon, or otherwise transfer the document to you, and then you can post it.
You'll save yourself the effort of having to train people how to use your interface as well.
Cheers,
__________________
FRC 2046, 2007-2008, Student member
FRC 1708, 2009-2012, College mentor; 2013-2014, Mentor
FRC 766, 2015-, Mentor