first lesson should always be respect, knowing your place and relative position. a slave without respect is useless.
you need to be able to communicate and also to be vulnerable. brief and superficial replies indicate you either have not put sufficient thought into living this life, are too immature or a deceitful person.
if you have an age range or race , gender or other mandatory criteria, put that in your profile. To not do so and just delete people enmasse is irresponsible.
If someone writes to you, shouldn't you appreciate that sufficiently to at least use an automated reply? How submissive are you if you do not Want to be courteous and respectful to sincere and respectful dominants?