Scam emails on dating sites
Chat pop-ups for "John" didn't start as immediately as for "Michael", but once they did (after about a day), they were similarly incessant, and equally implausible.
All of the above points strongly to scamming - that deceptive letters are sent out without regard for any particular qualities of their recipients (other than having money to spend).
My suspicions were aroused by my friend's description of the site: drop-dead gorgeous women everywhere, constantly sending him letters and chat pop-up requests, yet for every letter read after a lady's first, he had to pay ten credits, and ten credits likewise to send a lady a reply letter - instant messaging chats cost one credit per minute after the first three (free) minutes.
On 27 June 2014, I registered a fake profile, leaving all details unset other than name, age and profile description ("A Few Words About Yourself"), which I set (respectively) to "Michael Michaelson", 70, and "I'm just here to check whether this site is a scam. Notice that "Michael" explicitly requested only scammers to message him.
The site, which I won't link to, because I don't want to improve its search ranking, is asiandate.com, also operating under the domain aliases (i.e.