If you do not feel it is the right time to meet and give an act of submissive do not do it. I understand the need to know someone and to feel safe before anything in the bedroom starts, I'm that way with just vanilla sex. Safety first always.

There is another saying, "different strokes for different folks" I do not want to defend who ever PM'ed you but offer a possible different point of view again be safe, you want to introduce yourself with coffee and know someone first, sort of like start vanilla and work up, this might be his way of introduction or something he wants to do start the date off with some kick. You did mention "As hot as that reads" so this does look like it interest you. I think you should PM him back and let him know you need a personal connection first you can always do an act of submission later. He will either offer to meet you for a vanilla date and take time to know you, or he is probably not the time of Dom you are looking for and then you ignore him or let him know your not his type to avoid stalkers. Again safety meet in public have his picture so you know who to look for if that is what you feel you need to have.