While I'll all for people being less anonymous if they wish to, if you're looking for a full picture, this will be a hard way to get it. Given that there are tens of thousands of RQ recipients, it would be hard to get enough info to get a really full picture. Also, since 50% of citizenship applicants are Asian (South Asian, Chinese, etc) these groups will be well represented amongst RQ recipients as well.
While this research is explicitly around citizenship fraud investigations (which for applicants would start with an RQ and escalate from there), it can give a hint of the RQ picture:
http://multiculturalmeanderings.wordpress.com/2014/07/18/overstating-citizenship-fraud-new-canadian-media/
Lebanon is overrepresented because there are a lot of Lebanese-Canadians, and there have been some documented fraud cases and schemes. Also the 2006 evacuation of Lebanese-Canadians was a political impetus for cracking down on "citizens of convenience".