I know you are in a bad place right now, emotionally. I have been in that place, too, once too many times, and in a few years I will have to visit it again. But that does not give you the moral right to belittle a compliment offered in good faith and without ulterior motive.
For all the effort you put into your art---and your talent to command your viewers' emotion with a single brush stroke (so to speak) is awesome---I would think you would know, instinctively, that a similar effort must be placed in your words. I know nothing about art---I cannot draw a straight line; if I tried a circle without a compass it would probably look like a blimp or a beached whale. But I also know a bit about beauty, as a viewer with better than four decades of experience. I was looking when you had not even been heard of here or elsewhere, long before your first portrait was a few pencil strokes in a kindergartner's blank book.
I defer to your talents and abilities that I neither have nor want. I am most content to view your work, to fave it, and, from time to time, to offer a compliment. If you do not want the compliment, you should close the comment section. I have never, ever offered a criticism---except for, in one or two postings, an important part is cropped out. Every line you have drawn, every nuance you have shaded, is important; and that is why I object to the rare truncated post.
But when you question the accuracy of my compliment, I object. Your push-back is not humble; it rings of false humility. It implies that the words offered are not acceptable. And you may not know you are doing this, but you are. You are the best of such artists here on DA, but DA was fine before you showed up and will be fine after you have run out of inspiration. You are great, but it is not a greatness that compels continued support and encouragement if you intend to push back when they are offered. In between your postings, I have seen others that are equally beautiful---coming from places I would have never thought possible.
When a compliment is offered, you are not expected to reply in kind. You are not expected to validate the compliment. But have a little couth and at least offer a simple thank you rather than a push back. A push back says you don't give a shit about what was said. And I am about tired of being insulted by you simply because you draw and post pretty pictures. A sketch is a sketch and doesn't have to fetch the slightest remark.
Like I said, I know you are in a bad place right now. And I am so loathe to cause you any distress that I am posting this here, under my main account, rather than under the screen name and account I reserve here for art such as yours, art that is far different than what I have faved under this account. And even though you are in a bad place now, you had this habit of push back long before you entered the bad place, so that is not an excuse.
You do not need my approval, validation, or support. Your great talent speaks for itself. But you are not the only talented person on DA; you are not the only person who wielded a pencil at the level of fine art; and there is not one compelling reason, other than beauty, that keeps me faving your stuff and, up to this point, offering a compliment. If I bother to say something complimentary, the simplest, easiest, most efficient thing to do is to say "Thank you." Because, in our civilization, that is considered a required courtesy. However, because I am tired of your pushbacks, you will have no other compliments from me. You remind me of a poetry magazine that started during the Modernist period in after WWI and into the twenties. On it's masthead were the words, "The public be damned." This is a push back. The magazine published a few great poets, and then folded because the public it damned would not support the art it attempted to present.
I will continue to follow your work, under the other screen name, and to fave it when it deserves (and, frankly, it so very often deserves; that has never changed). But I will not set one word of mine on the comments section again. And, if I continue to tire of your attitude, after (of course) you have climbed back out of the bad place, I will stop faving. I can download your stuff without leaving a register of my visit.
Maybe what you need to do is learn how to push back the push back before it hits your reply section. You might retain friendships longer that way.