If you post a question already answered in the Q&A, the post should be removed to avoid useless generic question spam.

If your post is only about a question about a specific exchange like, it should be asked in the right sub-dread (For example you haves a question about kilos ? Do it on /d/Kilos) so it should be removed.

Same for "i deposited on xxx DNM it don't work" till it's not a protocol problem.