Don't worry about it, Lady! We all confuse posters all the time.
But, no, Pajarita (me
) would never, ever, ever suggest any bird that is asking for attention be ignored! As a matter of fact, I think this is my biggest beef with the 'traditional' advice that is usually given out in birdsites. I don't know who came up with the ridiculous notion but, whoever it was, it was not a bird person - that's for sure! And I'll tell you something else: I am convinced that most screamers were made that way by their humans ignoring their cries for help when they were babies. Wolf explained it correctly. When a bird screams, the first thing one should do is go to the bird because ignoring it will only stress him out, increase the anxiety that being alone brings and re-affirm the idea that the human does not love it. Not good and completely counterproductive.
Covering the cage during the day is a no-no. Birds are entirely dependent on light to the point that they are not only the most visually-dependent species of all the vertebrates but, for them, light is a nutrient because it regulates (or alters) the working of their endocrine system which, in turn, keeps the immune system working right. You do NOT want a bird with a screwed-up endocrine system because this translates into birds that pluck, scream, bite, get sick, are terribly moody, etc.
Keep the bird at a strict solar schedule with full exposure to dawn and dusk. Feed it a varied, fresh food diet (you cannot free-feed protein food to a conure), use a bowl for water and not a bottle (my sun conure bathes almost every day so make it a large bowl). Establish a daily routine and stick to it (being able to predict what is going to happen and when goes a loooong way toward making them feel secure). Let him out of the cage for, at least, four hours a day and spend, at least, 2 hours of one-on-one. And go to him every time he screams to reassure him. Don't give him a treat but do talk to him and scratch its head. Leave a radio on when you are not home and, if you work full time, I recommend you get somebody to come over to spend time with him or find yourself a birdy daycare place.