For the remainder of this response, I use the term 'divorced' to refer only to anyone who has obtained a civil divorce or annulment of marriage who has not obtained a decree of nullity from A catholic marriage tribunal and whose ex-spuse is still alive.
The CM owners have made it clear for as long as I have been on the site (almost 9 years) that it is not intended to be strictly a dating site. The site has a variety of features that are conducive to platonic fellowship and faith development that don't' involve participating in the matching/dating functions.
It is not uncommon for members to come to accept teachings of the Church as a result of their interactions with other CM members, either one-on-one or through the forums.
Discussing the morality of dating by those who are divorced is complicated by the fact that the term 'dating' has a wide range of meanings, from very casual and strictly platonic to romantic. If one is not careful to limit the term somewhat precisely, the discussion is almost guaranteed to be derailed in rather short order by those more intent on justifying their own behavior or beliefs than on understanding Church teachings.
Finally, it is important to realize that the answers to the seven faith questions do not accurately reflect the person's beliefs a fair amount of the time. Some don't understand the Church's teachings. Some intentionally answer Yes on points they do not accept because it is the politically correct answer. Some answer No for beliefs they do accept because they feel to do otherwise will mislead others about their past behavior. (Yes, I know this is not what the questions ask; however, over the years many people have reported having answered this way.)
Jerry I just had an idea for what some form of CM educational service on Church teachings might look like. When someone is answering their profile questions and it comes to the 7 Faith Questions, there would be a link provided by each question that someone could click on to find out "What the Church Teaches and Why". What do you think?