Well loitering is a connotative word so im guessing it has a negative feeling towards the poem
That it's not the object itself that is good or bad. It's whoever THINKS it to be good or bad. Such as the Bible can be interpreted to mean what is convenient to you, but not what is truly meant of the Bible.
"What's in a name? That which we call a rose by any other name would smell as sweet." It means that it does not matter to Juliet that Romeo is from the rival family, the Montague. It became a popular reference for the name things that does not get affected their true nature and characteristics.