In other words, when we offer prayers, hum Uss par koi ihsan nahin karte. Agreed
If you cannot dress up appropriately, simply do not bother offering prayers at all. Not totally agreed, Wearing complete clothes is one hukum and praying is another. wearing half naked clothes does not give you excuse for not praying, you need to pray, along with wearing complete clothes. I got the soul of this point but one should not leave his Muslim brother in disarray.
Allah knows who's prayer is accepted or not.
One cannot say let me do what ever I want to, who the hell are you to tell me what should I do. If one is doing wrong, other Muslim brother should tell him about the wright way if he knows it with authenticity, but should not impose.