What the poem is about

• The poem seems to be spoken by a BBC newsreader.
• He or she explains why the BBC thinks it is important to read the news in a BBC accent: no-one will take the news seriously if it's read with a voice lik / wanna yoo / scruff.

It is not that simple, though!

• He or she speaks here in the accent of an ordinary speaker/viewer - just the kind of voice which the newsreader is rejecting.
• A newsreader would never really reveal his or her prejudices directly to the viewer in this way. So what the newsreader 'says' in this poem perhaps needs to be seen as the unspoken message (or sub-text) of the way the news is presented.

Try re-writing the same poem in Standard English. Would it carry the same trooth?