I'm not going bother to talk about myself seems like too much effort.
I do not respond to any messages without a photo. If I can put myself out there and deal with my own insecurities then you should as well. (Mostly it's men hiding from their wifes and girlfriends anyway)
Also, if we arent looking for the same things or your common interests aren't in line with mine or ones I'm willing to adapt and vice versa, then I will not waste anyone's time.
Just because it shows I'm online doesn't mean I am. Just because it says I viewed your profile doesn't mean i did it on purpose, as when I'm doing other things on my phone and that stupid bubble pops up and I click things accidently, sh*t happens.
And the "you must not be interested, sorry to bother" or any derivative of the above or messaging me to imply I'm high maintenance or too shallow to respond ARE NOT attractive characteristics which does not deserve a response but if that is you maybe you should stop worrying about if I'm shallow or not and work on not being such a judgemental ass.