There could be a slight difference, because on this site, all men who sign up would be aware that they initiate a message, and all women would be aware that the

There could be a slight difference, because on this site, all men who sign up would be aware that they initiate a message, and all women would be aware that they have to initiate. This could (not sure, of course) lead to a different dynamic than a site that mainly works on a different set of rules.