Mad, maybe not... wouldn't want you to go crazy over someone elses inability to communicate properly. lol Indignant, maybe.
There are so many players out there that only want to "get off" whilst you're devulging your deepest, darkest interests in the lifestyle. You can certainly convey your likes without going into detail. Obviously, we all want to connect with another, who is bdsm compatible. So,without asking questions, how does one know if compatibility will be an issue?
Perhaps you should take a bit more time with these Doms. After telling them your general interests, see what transpires. Usually, the wannabes show their true colors within a few sentences. Like asking "What's your bra size." lol
Getting mad and clicking them off before you've really given them a chance is diminishing your possibilities of someone who might be right for you. Afterall we're not all great communicators and it might be that when you're approached, the Dom is just nervous. Can happen, no?